Metabolic disorders occur when the body's usual metabolic processes are disrupted. These diseases can be congenital or acquired, for example, diabetes and phenylketonuria. This Review discusses ...

Lent is the time before Easter during which the faithful abstain and fast in remembrance of the ultimate sacrifice Jesus made on Calvary. It is a 40-day time of preparation before Easter ...

However, how tired people feel before or during their period varies individually and, in some cases, may be due to an underlying health issue. The tiredness you feel before your period is related ...