Can you choke a fly? Find out on this Moment of Science.
Varicose veins in the legs occur when the valves in a vein near the surface of the skin malfunction. Valves usually keep blood from flowing backwards in the vein once it’s been pumped towards the heart.
Water weight doesn’t mean that you’ve been drinking too much–it means that you haven’t been drinking enough and that your body has detected a water shortage and is retaining water.
Swollen Hands and Walking, on today’s Moment of Science. Do your hands swell up when you walk? If they do, it probably has to do with your circulation. The circulatory system is a one way street. Blood flows away from the heart in the arteries, down the arms and legs then back up to the […]
How is it that sometimes people survive multiple lightening strikes, while others die instantly?