Posts made in September 2018

What is a Cardiologist?

Heart in Puzzle piecesCardiology (from Greek καρδίᾱ kardiā, “heart” and -λογία -logia, “study”) is a branch of medicine dealing with disorders of the heart as well as parts of the circulatory system. The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians who specialize in this field of medicine are called cardiologists, a specialty of internal medicine. Pediatric cardiologists are pediatricians who specialize in cardiology. Physicians who specialize in cardiac surgery are called cardiothoracic surgeons or cardiac surgeons, a specialty of general surgery.

Although the cardiovascular system is inextricably linked to blood, cardiology is relatively unconcerned with hematology and its diseases. Some obvious exceptions that affect the function of the heart would be blood tests (electrolyte disturbances, troponins), decreased oxygen carrying capacity (anemia, hypovolemic shock), and coagulopathies.

Interesting Facts!

  1. Young woman with red hair laughingThe average adult heart beats 72 times in a minute. This is 100 000 times a day, 3 600 000 times a year, and 2.5 billion times during a lifetime!
  2. A kitchen faucet would have to be turned on all the way for at least 45 years to equal the amount of blood pumped by the heart in an average lifetime.
  3. The myth of a broken heart may not be off base, since a breakup with a loved one or news of a death can lead to heightened risk of heart attack. Such trauma can also trigger the release of stress hormones into the blood that temporarily stun the heart. This results in the symptoms of a heart attack, chest pain and shortness of breath.
  4. A glass of red wine will go straight to your heart – scientists have attributed the heart benefits of red wine to the grape skins used in producing it. They are full of anti-oxidants.
  5. Laughter really is great medicine! A hearty laugh can send up to 20% more blood pumping throughout your body.
    A woman’s heart typically beats faster than a man’s. The heart of an average man beats approximately 70 times a minute, whereas the average woman has a heart rate of 78 beats per minute.
  6. One person’s system of blood vessels is over 60,000 miles long, which is long enough to go around the world twice.
  7. Because the heart has its own electrical impulse, it can continue to beat even when separated from the body, as long as it has an adequate supply of oxygen.
  8. The heart is capable of squirting blood at a distance of up to 30 feet.
  9. Your heart is almost entirely made out of muscle, and if harnessed properly, it could lift over 3000 pounds!
  10. Taking care of your heart is an important factor that contributes to your overall well-being. If you are looking for an experienced

Credit: Source

Sleep is Good for Your Heart

 

BedNew research — which is now published in the journal Scientific Reports — examines and highlights the importance of regular bedtimes for optimal heart and metabolic health.
clock on bedside table
Going to bed at the same time each night may keep both your heart and metabolism healthy.
The cardiometabolic health risks linked to sleep deprivation are numerous.

These health risks include weight gain, insulin resistance, type 2 diabetes, high blood pressure, and heart disease.

Going to bed and waking up at the same time every day, however, is also vital for health.

A study from last year reported that “social jet lag” — that is, the difference in sleep and waking times between the weekend and the weekdays — can also raise the risk of heart disease.

Previous studies have also suggested that obesity and diabetes may be on the cards for those who hit the snooze button on weekends.

Now, new research from the Duke University Medical Center in Durham, NC, adds to the mounting evidence suggesting that regular bedtimes are key to a person’s heart health and the good functioning of their metabolism.

Jessica Lunsford-Avery, Ph.D. — an assistant professor in psychiatry and behavioral sciences from the Duke University Medical Center — led the new study.

Bedtimes and cardiometabolic health
Lunsford-Avery and team examined the sleeping patterns of almost 2,000 adults aged 54–93, who had no history of sleep disorders.

The volunteers all wore sleep tracking devices that picked up on the slightest variations in bedtime patterns. The adults wore the devices for 7 days and kept a sleep diary.

Credit: Source