Commissions do not affect our editors' opinions or evaluations. The best high-yield savings account is Capital One 360 Performance Savings Account™, earning the top rating of 5.0 stars in our study.

Testosterone worsens the damage caused by a heart attack by increasing the number of white blood cells released from the bone marrow. This is shown in a study by the University of Gothenburg, Sweden.

Our immune system is armed with an array of defenses designed to detect and eliminate harmful threats. One of its most powerful defense mechanisms is the complement system—a group of proteins that ...