Coronary angioplasty (AN-jee-o-plas-tee), also called percutaneous coronary intervention, is a procedure used to open clogged heart arteries. Angioplasty uses a tiny balloon catheter that is inserted in a blocked blood vessel. Angioplasty is often combined with the placement of a…
Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. And that means the germs are not killed and continue to grow. Infections caused by antibiotic-resistant germs are difficult and…
Caffeine is a central nervous system stimulant of the methylxanthine class. It is the world’s most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world. Caffeine is a…
