Broken heart syndrome is a real cardiac condition triggered by stress. Learn who's at risk, what symptoms to watch for, and how recovery typically unfolds.
A reciprocal cross swaps the sexes of parent organisms to reveal whether traits are inherited equally or influenced by sex, cytoplasm, or gene imprinting.
Prosthetic dentistry restores missing or damaged teeth using crowns, implants, dentures, and more. Learn what treatments exist and when to see a prosthodontist.