- The 'heart' shape we use now was probably an effort to draw the heart before people knew what it looked like inside the body.
Cross-section, human heart. All mammal hearts look very similar.... such as:
This is a pig's heart
This is the heart of a dog
- A human heart beats about 70 times a minute in men, 78 times a minute in women
- A transplanted heart beats about 100-110 times per minute
- The left lung is a little smaller than the right so there is enough room for the heart
- The heart weighs about 11 ounces and is about the size of your fist
- Your heart beats 100,000 times a day and 2.5 billion times in a lifetime
- It pumps 2000 gallons of blood every day
- All mammal hearts have four chambers
- That 'thump-thump' sound the heart makes is due to the four heart valves opening and closing
- The only organs in your body that do not receive blood are the corneas in your eyes
- Cocaine interferes with the heart's electrical activity and can stop the heart
- 30% of people who die of heart disease are smokers; at least 20% of people die from smoking-related disease that may not be of the heart: Emphysema, for example.
- In 2006, death rates due to heart disease were the worst in Mississippi and the fewest in Minnesota
- Heart disease kills 500,000 women a year and 450,000 men a year
- CT scans of ancient Egyptian mummies show that they had heart disease....and this was long before fast food diets and not enough activity, which is known to cause heart disease now
- Women's heart attack symptoms are more likely to include a feeling of nausea, indigestion, and pain in the jaw or the shoulder
- Men's heart attack symptoms are typically sweating, pain down the left arm, shortness of breath, and chest pain
Take Care Of Your Heart!!