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An Unexpected Role for the Brain’s Immune Cells

An important part of the brain's immune system, cells called microglia constantly extend and retract "branches" from their cell body to survey their environment.

How to Tell if You’re Having a Heart Attack

Roughly 1,000,000 to 1,500,000 Americans have heart attacks each year. About one-third of these individuals die.

Understanding Hormones: the roles of Estrogen and Progesterone

How Estrogen and Progesterone levels affect women. These hormones play a key role in pregnancy and are also present in men.

Predictions For Biden’s Covid Origin China Probe

Biden has given the US intelligence community 90 days to come up with answers about Covid Origin and the Wuhan Laboratory. China is unlikely to co-operate