A miscarriage can be a common cause of brown to black vaginal bleeding. Not all the women realize that they are pregnant until there is an abnormally heavy bleed particularly consisting of large clots or the color varying from the normal period blood.
Boost Your Metabolism in 15 Minutes 4 Moves to Rev Your Metabolism Kick calorie burning into overdrive with this quick full-body workout Read more: Exercises that Boost Your Metabolism - How to Boost Your Metabolism - Woman's Day.
A body with a greater ratio of muscle to fat requires more calories each day. Men, who are generally more muscular than women, burn more calories. Additionally, most people lose muscle mass as they age, so younger people tend to burn more calories than do older people. Weight training is an effective way to speed up your basal metabolism.