Kojic acid, a product derived from several species of fungi, is known to limit melanin production -- the substance that gives skin its color. Consequently, kojic acid is a common ingredient in skin lightening or depigmenting products. Kojic acid can cause some side effects, particularly for those with sensitive skin.

If your baby has hard dry stool or cries when passing a bowel movement, she may be constipated. A baby can go a few days to a week without having a bowel movement and not be constipated if the stools are still coming out soft.

Fever is a normal reaction and is usually a positive sign that your body is fighting an infection. Fever means your child's body temperature is higher than normal. When fewer is breaking, the worst is usually over and your child's temperature is coming back down.

A man's reproductive system has many functions, including ensuring his fertility and providing sex hormones that support his sexual well-being. Although problems that arise in the system are often treatable, several disorders can have potentially serious consequences.

Powerful shoulders provide strength and remain a key component of a complete physique. While not every man can have the shoulders of a comic book superhero, heavy overhead pressing and strong lateral work can add to the strength and width of your shoulders.

Children are frequently exposed to many viruses, illnesses and irritants that can trigger a facial rash. Cold weather can cause or exacerbate a facial rash, especially if the temperature and elements are extreme. Understanding what can cause a facial rash in cold weather can help you decide how to treat and prevent it.

The type of abortion your doctor chooses for you will depend on the stage of pregnancy to which you have progressed. Generally, abortions that occur earlier in pregnancy have a shorter recovery period since they are less extensive. If you undergo a later-stage abortion, you can expect a longer recovery time.

Having an infant or toddler who wakes up with a fever can be scary. A fever typically occurs when your child’s body is fighting an infection. A child’s fever usually gets better within a few days, according to MayoClinic.com.

Colds occur as often as 8 times per year in young children, and no parent wants the little one feeling under the weather for long.

Vaginal blood clots often accompany unusually heavy and often painful menstrual bleeding. Clots that accompany heavy menstrual bleeding can be a side effect of one of several gynecological conditions that can block the flow of menstrual flood. This backup of blood may result in clots.

In our society, a tall stature is admired. Models need to be 5’7’’ or taller, and women look for men who are tall, dark and handsome. Unfortunately, you don’t get to choose your height. Genetics play the largest factor in determining your final height.

Glycyrrhizin, a compound found in the root of the liquorice shrub, can cause problems in some people, especially pregnant women, who may experience preterm birth as a result of its use.