Cardiovascular diseases constitute a major global health concern. Various complications that affect normal blood flow in ...

DEAR DR. ROACH: If exercise helps new arteries to grow, would it also help new veins to grow and alleviate varicose veins? -- M.D. ANSWER: It’s a good thought, but unfortunately, exercise does not ...

Researchers are shifting focus from large arteries to microvessels, where nitric oxide activity may signal early circulatory changes before symptoms appear. Nitric oxide is a signaling molecule ...