Mental health and physical health tend to be a two-way street — each can affect the other. Having PTSD can affect both, but recent research suggests some of the physical harms associated with PTSD may be the fault of another culprit.

People diagnosed with Parkinson’s disease often deal with tremors, stiffness and slow movement. They also may have more than their fair share of a more common complaint.

Being overweight can have a wide range of effects on people's overall health, both mental and physical. And n umerous studies have shown that increased weight is associated with a decrease in sleep at night.

Sleep is an important aspect of maintaining good health. So people with insomnia may wonder how their problem affects their health. They may have one less health concern to worry about.

Matters of health can't always be separated clearly into physical issues and mental issues. A new review examined one such overlap between physical and mental health — sleeping troubles in cancer patients.

Obstructive sleep apnea is a serious condition that can increase the risk of obesity, type 2 diabetes and other diseases. The most common treatment for sleep apnea is CPAP. But it's not always easy to get patients to use CPAP every night.

There are many known factors that increase the risk of developing diabetes. New research may be adding one sleep disorder to that list.

Sleep apnea has been linked to problems with blood flow. As healthy blood flow is crucial to many functions of the body, including the five senses, it's possible that sleep apnea could play a part in damage to our senses.

Kids who don't get enough sleep might drive their parents crazy sometimes, but there could be more at stake. Kids' waistlines could suffer too.

Sufficient sleep is essential to all aspects of a person's health. And for people not in good health, such as those living with cancer, good sleep might mean living a little longer.