Answer: If you work out then that will cause your heart to pump faster witch will cause your veins to expand from all the rushing blood and then your veins will almost pop out of your legs but this will not hurt or harm you. Also if you stress your leg then that can also make your vein pop out of your leg. But my advice is not to be taken literal.
Answer: First of all, numbness in the legs is a symptom of a problem. It could be anything from poor posture restricting the blood flow, to vitamin deficiency, blood clot, multiple sclerosis, tumor and many other things. You need to go see your physician. Do not rely on advice form others, especially from the Internet.
Answer: Gluten intolerance/allergy as well as yeast overgrowth in the gut can be aggravated by consumption of many grains, causing a multitude of symptoms. Flour can also be high in sodium and often products are flooded with additional products, like baking soda, which can cause water retention/swelling. White flour does many things to the body. Go for whole wheat for better health in the future. AND eating white flour RAW is toxic and poisonous.
Answer: ok so if its only your legs that wont tan then maybe consider just using tanning lotion on your legs! i know it might sound weird to a guy, but oil tanning bases work the best!hope i could help!
Answer: The best way to study is to get up every half hour or so and do some exercise. Shaking the legs will help, but you really need to stretch and walk around some to help the blood circulate better and relax your tense muscles. This will help you stay alert and study better.