<span>John is loosing weight because his body is burning all of the carbs he has stored. After the initial burning of the stored carbs, Johns body will begin to burn stored fat. If and when he introduces carbs back into his diet, the weight is likely to return. There can be a negative of low carbs in the diet because carbs are the main energy source for the cells mitochondria (energy producers). It is not recommended to go on a very low carb diet. It is recommended that a well balanced diet be consumed for weight loss and maintenance.</span>
Detox. Varies for every individual but most accurate is within a few days to a week
When you are exercising, you're blood pressure is elevated. When you are finished exercising, it will recede to near it's normal state. Exercise doesn't have as much of an affect as weight does, but I guess all these things are all kind of inter-related. The more physically fit you are, the lower your blood pressure, in general.
Ibuprofen should help and lots of water.
