Immunology

VAT fat may cause pathogenic obesity

Type-2 (adult-onset) diabetes and other diseases related to the obesity epidemic depend on how the body stores excess energy, according to evolutionary biologist Mary Jane West-Eberhard, emeritus scientist at the Smithsonian ...

Psychology & Psychiatry

Binge eating and smoking linked to bullying and sexual abuse

People who ever suffered bullying or sexual abuse have a lower quality of life similar to those living with chronic conditions like heart disease, diabetes, depression or severe anxiety, a new study from the University of ...

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Heart

The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."

The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.

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