In space, the hearts of astronauts become rounder. According to the scientists who have studied this phenomenon, the hearts of those who spend long periods of time in space were transformed into a shape that averaged nearly 10% more spherical after six months.
In Minnesota, recently, the hearts of moose have so often faltered too soon, they’ve suffered a cluster of early mortality so profound that they have been wired and followed from a distance by veterinarians. When interviewed, one of them explained that when a moose heart stops beating, it sends a text message to their phones that says, “I’m dead at x and y coordinates,” directing them so quickly to the downed, they have a better chance to decipher the clumsy heart.
My sister, who has examined the human heart in the commonplace of gravity, has prepared herself for surgery on her own faulty heart. The doctor is a friend, the anesthetist a colleague. A volunteer for study, she has already been monitored a dozen ways, details of her heart and the outcomes of her surgery to become averages or anomalies.
One afternoon, during eighth grade, I stood with my classmates around the cow’s heart Miss Hutchings unwrapped on her desk. Inside and out, she said, we need to know ourselves, halving that heart to show us auricles, ventricles, valves, the wall well-built or else. Her fingers found where arteries begin. She pressed the ends of veins. She said we were learning the circulatory system the proper way, observing first hand.
That cow’s heart Miss Hutchings displayed looked nothing like the ones that had been suggested on Valentine’s Day, during cartoons, and in art classes, beginning in first grade with Mrs. McIntyre having us draw a sweeping arc from near the top of our red, folded construction paper down to the very bottom. “Now cut, children,” she said, “very carefully along that line and then unfold.” And though some of them were V-shaped and others looked more like balls, in a minute all of us had the suggestion of a bright red heart to write, “I love you” upon and carry home to our mothers.
Previous studies have shown that astronauts are exposed to a range of health issues when taking prolonged trips into space, including losses in bone density and muscle mass and vision anomalies, but now it’s been shown that there is more to be concerned about than those problems. The rounder the heart becomes, the weaker it gets. A rounded heart is a heart at risk.
Once, riding in her car while I was visiting Maine, I listened to my host tell a story about hitting a moose on the stretch of highway we were traveling. A family had pulled up behind her on the shoulder, the father asking, “You got a use for that moose?” I smiled, thinking that was the punch line, but there was more. A moment later she described the haunch of moose she’d bartered from that family. “That moose was all mine, by rights,” she said, “but the father dressed it out, so it was a fair trade.” Even though it was raining heavily, she accelerated, our speed feeling like an exclamation point, the air inside the car so rich with story, change easily entered me. Because I love to eat organ meat, I asked her whether she’d received part of the heart and liver. “Not the heart,” she said. “Not that.”
And last week, in Pennsylvania, when my vocabulary for encouragement stumbled and stalled, I offered my sister the weak consolation of listening to her analyze the pros and cons of heart surgery. The muscle, she said, can regain what’s been lost. Just in case, I’ve updated my will. Three hours, on average, this operation takes, she went on, though by then I was fixed on the sort of planning that included a will revision, the summary she provided about how post-operative rehab is organized failing to adhere to the moist walls of my memory.
Both of us had listened for years to our father’s reports on his aging heart. About the tempo at first, the pacemaker fresh under his skin after he’d fainted at the wheel and drifted, through luck, into a field as level as his crab-grassed lawn. Sixty, he’d say, as if he was in training. The first time he exposed its shape near his shoulder I imagined his body penetrated by some circular alien who would, inevitably, invade his blood.
After our class had inspected the cow’s heart, Miss Hutchings unwrapped the hearts of chickens and turkeys, the hearts of swine and sheep. She arranged them by size on the thick, brown paper sack, leaving a space, we knew, for ours. Richard Turner, whose father’s heart had halted, examined his hands. Anne Cole, whose father had revived to cut hair at the mall, stepped back, turning away from the entry to the steer’s aorta, the four chambers we were required to know.
A long-held belief of many traditional cultures and their medicine men is that eating the organs from a healthy animal supports the organs of the eater. For example, eating the brains of a healthy animal supports clear thinking, and eating animal kidneys will cure people suffering from urinary disease. That logic means that the best way of treating a person with a weak heart is to feed the person the heart of a healthy animal. There are countless reports about the success of these types of traditional practices. None of them have been verified by scientific testing.
“Feel this,” my father said, guiding my hand to the simple Braille of his new pacemaker. “Sixty,” he said, “over and over like a clock.” I told him about the billion heartbeats of the mammal, how the shrew had three years to live at 800 beats per minute, and the cat had twelve at 200. “We have thirty years,” I said, “because we use up100,000 beats per day, but we get more because of science and medicine and help from how slowly we mature.” When I told him this, my father was well over eighty, closing in on three billion, and I was past two billion.
Some statistics I didn’t tell my father:
The human heart usually weights about ten ounces, but the heart of the blue whale often weighs about 1300 pounds. It averages about 8-10 beats per minute that can be heard two miles away. On the other hand, the tiny hearts of hummingbirds are the largest proportionate to their minuscule body weight. Their heart rate runs to over 1000 beats per minute when they’re active, but it slows when they sleep to less than 100, a necessity, or they would starve to death before morning.
According to the Alaska Department of Fish and Game, the average weight of a moose heart is three pounds. “It’s like holding a football,” the spokesman adds.
“The heart doesn’t work as hard in space, which can cause a loss of muscle mass,” says the lead scientist for ultrasound at NASA and senior author of the study of astronauts’ hearts. Though the astronauts’ hearts returned to their normal, more oval shape, shortly after their return to Earth, what’s left to learn is whether there are serious, long-term consequences, something that can’t be known for years.
“You know these things when you teach in a medical school”, she says. “I’ve known for quite some time my heart cannot heal itself.” She talks as if I, too, have always known she’s had what she calls a “persistent disability,” something “nagging whose voice has gotten louder.” As if that voice could carry hundreds of miles, revealing her heart’s distress. She says the surgery is a choice that’s been made by her body. She is thin. Skeletal, I think, and all I can think to say is, “It’s good you have the inside information on your surgeon.”
“I’m thankful that I know these people,” she says. “I trust them.”
Until I was twelve years old, I looked forward to the ritual of tiny candy hearts being shared at the Valentine’s Day parties we had in grade school. Love You Much, it said in blue letters on the pink candy. Be Mine was repeated in red letters on pale blue hearts. From fourth to sixth grade, I looked at Susanna Frank or Nancy Harris or Kathy McMichaels each time I swallowed one, sending sign language their way.
The ultrasound pictures of the long-term-in-space astronauts’ hearts are stunning. The hearts look as if they’ve been molded like clay, becoming so nearly circular they appear to be incapable of working. It doesn’t surprise me to learn that astronauts often get lightheaded and faint upon standing when they return to earth because of a sudden drop in blood pressure.. I think of my father, hospitalized at last, admitting he had, despite the pacemaker, fainted twice when standing, the third time after bending to place his ball on a tee at a public golf course. Despite my father’s protests, his friend had called an ambulance. Within a week he underwent his second heart repair, this time triple bypass surgery.
The day after we looked at animal hearts, Miss Hutchings asked us to take our pulses. Using the stethoscopes she’d brought to class, we listened to each other, boy to boy, girl to girl, because of the chance we’d touch. The images of those butcher hearts faded while I dreamed of pressing my ear to the rhythmic hearts of Sharon Rolfe and Janelle Fisher, whose breasts, so far, had brushed me a few times while dancing. And then Miss Hutchings recited the quart total of our blood, the distance it must travel, leaving and returning. We learned all of the names for the necessary routes it followed, ending with capillaries so close to the surface I understood, though she didn’t say it, we could nearly reach them with our lips and tongues, rushing the blood to each of the sensitive sources for joy.
The sugar Valentine’s candy I once loved in grade school are called “conversation hearts” in the ads for them on the Internet. They come in two vague sizes—small and large—but both kinds still feature the familiar messages from my childhood: Marry Me, Sweet Talk, Darling, all of the speaking hearts in pastel colors, three pounds for $15.76.
Now there are variations on that candy’s simple design:
Heart-shaped sucker rings that fit on a finger
Heart-shaped candy strung into bracelets
And colorful, decorated heart-shaped boxes in multiple sizes that contain those heart-shaped candies, the packaging suggesting a truncated Russian doll.
A woman named Mercy Brown was once exhumed for public autopsy. The people in the town in which she had lived believed that a current local cluster of consumption might be worsened by those who had died from that disease, but it could be bettered by burning the uncorrupted heart of the victim. Not only might there be an end to an epidemic, there was a chance, people said, that her brother Edwin might be cured of his tuberculosis by eating the ashes of her heart. Mercy’s father had to watch his daughter raised from the grave after being months buried. He had to endure the burning of her heart. Edwin, at last, swallowed the ashes, but he died, regardless, in two months, leaving his father to live alone and remember his daughter being twice buried. This happened in Vermont, in 1892. Mercy Brown was also thought by many to be a vampire.
The rounding of the heart could mean trouble for people who want to embark on long-term missions to Mars. Astronauts currently spend up to six months at the orbiting International Space Station, which is staffed by rotating crews. Missions to Mars would take about 18 months and may offer no return trip.
As if she wants me to be convinced her upcoming operation is routine, my sister tells me our cousin has undergone his third operation, that he has flown from Virginia to a Texas hospital for the latest surgery. So thin, she says, his pants want to fall down, his shirts hang like curtains, reminding me how, every late August, my mother held up what he’d outgrown, what I’d grow into, dressing me for school and church for a year, two if we were lucky, teaching the lesson of the threadbare, the ill-fitting and the out of style, learning what was good enough. He’s still Standing on his own two feet, my sister says, wearing her hand me down language, adding he’s in our prayers and he’s a fighter like a litany, like I should say amen or sing the Doxology before a recessional hymn of hope. My sister, who learned to sew her own clothes, who wore homemade, but new, who needed to perfect the careful cut and stitch because she was older than every female cousin, declares “Our time will come” like some minister for fatalism. She’s at the window of the spare room where I’ve slept, saying the weather, so sunny and mild, is heavenly while I try to ignore the sewing machine, the half-finished skirt and the thick file of patterns collected in the good light I have to tear my eyes from.
Is it safe to eat a fresh raw moose heart?
Someone has already posted that question in an Internet forum about large game animals. He received half a dozen responses:
“I wouldn’t. Chances are you will be just fine afterward, but eating that heart raw isn’t very smart. As a rule of thumb you shouldn’t eat anything raw from a game animal, especially an internal organ like the heart.”
”No, it’s not safe to eat the raw flesh of a moose or a deer or any wild animal, you can get heart worm.”
“Apparently you forgot why we let large game animals hang after we gut them and then let the carcass chill to near 32 degrees. It’s to kill the intramuscular parasites.”
Now it is understood that in order to keep the heart healthy in space, astronauts must know the amount and type of exercise they need to perform to guarantee their safety on prolonged spaceflights. It’s been suggested that exercise regimens developed for astronauts could also help people on Earth who have physical limitations also maintain good heart health. Those models could also give doctors a better understanding of common cardiovascular conditions for ground-based patients.
During the last years of his life, approaching ninety, our father wore sweaters even in summer, so cold, so often, he kept the windows shut in his un-air-conditioned house. He would probe for his pulse, reporting, “Still there.” After that small, brief joke, he’d wait five minutes, sometimes ten, before listening to his wrist again, head bowed, leaning forward, as if he needed to coax a heartbeat with prayer.
When I attended my 50th high school class reunion recently, there was a large poster that was labeled “In Memoriam.” It listed those from my class who had died, a bit reminiscent of the Vietnam Memorial, complete with a few small, impulse tributes of programs and table favors laid beneath it. Sharon Rolfe and Janelle Fisher, I discovered, had each been dead for more than twenty years. Except for our war dead, causes weren’t listed, but like all the others, their hearts had stopped.
In the midst of writing this essay, I take a heart age test and learn my heart is a year younger than my age but I have a 22% higher risk than average to have problems in the next ten years. I remind myself that I’ve lowballed all of my answers, that this is a worst case scenario, but there’s no denying my mother’s heart failure when she was younger than I am, my father’s bypass and pacemaker, my sister’s impending open heart surgery.
A few answers to the raw moose heart question were more condescending:
There is an Animal Planet RV show about humans getting animal parasites. You stand a good chance of being their next guest star.
If you want to take the chance, it’s your body.
Everything points to a glass or two of red wine being heart-helpful, but I drink only white wine and then only rarely, preferring beer. There is evidence that hearty laughter is good for the heart, but I seldom laugh out loud. I blame it on my family history, all those dour, judgmental Germans drinking beer and frowning until they tumbled with heart attacks and strokes.
There seems little question that eating organ meats has fallen out of favor among people I know. I tell them that liver, kidney, and heart are some of the most nutrient-rich foods you can eat, but there aren’t any takers. At the grocery store, when I look for veal or lamb kidneys, there are none, and when I settle for a package of chicken hearts, the clerk goes “Eeew!” and acts as if she’ll pass it through without ringing it up just to avoid touching it.
Even when, in the assisted living home, my father stopped watching television, when he slept twelve hours a day and napped three times, his fingers went to his wrist as he woke, repeating, “Still there,” Even when he gave in to the wheelchair. Even when half his weight vanished although he ate, like always, everything that was served, Even when his sentences turned shorter, the ends lost like addresses, phone numbers, and the names of the dead, his fingers returned to his wrist to read the braille for “still there,” while I waited, despite reason, holding my breath for his up-to-the-minute news.
Although raw moose heart is uniformly cautioned against, there are several methods posted on the Internet for how to prepare moose heart for cooking, most of the directions similar to this:
When the heart is still fresh, soak it in a bucket of cold sea water or fresh water to flush out the blood. Rinse well. Trim the fat and the tops of the valves off well so that the final product is mostly red and the top is relatively level, with clear access to the chambers of the heart. At this point, the heart can be kept in the freezer if wrapped well in saran wrap and butcher paper, however it is best when eaten fresh.
The recipe calls for:
1 moose heart
½ loaf of your favorite white bread
about 4 stalks of celery, chopped into small pieces
1 onion, chopped
2 cloves garlic, minced
2 T parsley leaves
2 t rosemary
2 t oregano
1 t sage
olive oil 3 T butter
salt to taste
pepper to taste
water, red wine, soy sauce to taste
This morning, the day of my sister’s surgery, a waitress spread whipped cream into a thick, valentine heart across my son’s banana-walnut pancakes. Because, she said, a circle would never make you think it’s a heart, so unashamed of sentiment, her heavy body turned delicate in the sweetened air.
All this afternoon I regret the impossibility of omniscience. And yet I am thankful. At last, from across the room, my wife’s phone sings its song of incoming text. And though the news, this time, is good, in the altered atmosphere, I believe our dependable, dangerous hearts are becoming spheres.