Heart, Blood & Blood vessels- Facts

• The human body has approximately 37,000 miles of capillaries.
• The aorta, which is largest artery located in the body, is about the diameter of a garden hose.
• Women hearts beat faster than men.
• Three years after a person quits smoking, there chance of having a heart attack is the same as someone who has never smoked before.
• The human heart weighs less than a pound.
• The human heart can create enough pressure that it could squirt blood at a distance of thirty feet.

• The first open heart surgery was performed by Dr. Daniel Hall Williams in 1893.
• Scientists have discovered that the longer the ring finger is in boys the less chance they have of having a heart attack.
• The right lung of a human is larger than the left one. This is because of the space and placement of the heart.
• The human heart beat roughly 35 million times a year.
• Olive oil can help in lowering cholesterol levels and decreasing the risk of heart complications.
• In a lifetime, the heart pumps about one million barrels of blood.
• In 1967, the first successful heart transplant was performed in Cape Town, South Africa.
• People that suffer from gum disease are twice as likely to have a stroke or heart attack.
• Most heart attacks occur between the hours of 8 and 9 AM.
• The human heart beats roughly 35 million times a year. 
• At one time it was thought that the heart controlled a person's emotions.
• Every day 2,700 people die of heart disease.
• During a typical human life span, the human heart will beat approximately 2.5 billion times.

• In one day your heart beats 100,000 times.
• For humans the normal pulse is 70 heartbeats per minute. 
• Two million red blood cells die every second.
• There are approximately 100,000 miles of blood vessels in the human body.
• Seven percent of a human’s body weight is made up of blood.
• In the early nineteenth century some advertisements claimed that riding the carousel was good for the circulation of blood.
• Each day 400 gallons of recycled blood are pumped through the kidneys.
• By donating just one pint of blood, four lives can be saved.
• Blood is such a good stain that Native Americans used it for paint.
• The kidneys filter over 400 gallons of blood each day.
• The average life span of a single red blood cell is 120 days.

• Blood accounts for about 8% of a human's body weight.
• A woman has approximately 4.5 liters of blood in her body, while men have 5.6 liters.
• If you could stretch out all of a human's blood vessels, they would be about 60,000 miles long. That's enough to go around the world twice.
• Half your body’s red blood cells are replaced every seven days.
• If all the blood vessels in your body were laid end to end, they would reach about 60,000 miles.

Posted in: Physiology and anatomy