One of the studies looked at echinacea used with vitamin c, another common cold remedy, and that one showed the two together reduced the number of colds by 86%.

Your fingers and toes are more prone to frostbite, because those areas will have reduced blood flow in cold temperatures, as your body tries to keep its core warm.

Now, a new study has discovered how exposure to cold dramatically alters the composition of bacteria the gut, and this leads to fat-burning, improved glucose metabolism, and reduced body weight.