Vitamin A is essential for the proper production of steroid hormones that drive a high rate of metabolism and therefore immunity. Studies find that people with a vitamin A deficiency are more at risk for viral infections; more serve infections,…
As part of our special With You TODAY segment, NBC News medical correspondent Dr. John Torres answers viewers’ questions about the coronavirus, including: How long does it take for symptoms to appear? And can taking ibuprofen make the symptoms worse?…