Dry skin is usually a benign skin condition. Unfortunately, it can also be very uncomfortable. Our skin is our largest organ and acts as a waterproof, insulating shield guarding the body against extremes of temperature, damaging sunlight, and harmful chemicals. It also exudes antibacterial substances that prevent infection, manufactures vitamin D and helps detoxify our bodies of harmful toxins.
Seasonal Affective Disorder .Every year, as the days get shorter and the weather gets , colder millions of people (particularly in the northern climates) are affected by a condition known as SAD or Seasonal Affective Disorder. About a third have the actual SAD, as it is clinically defined, while the rest can be lumped into the winter blues category, which many of us can identify with.
Natural light and Tryptophan
There are many theories as to why this condition exists and trying to isolate a single causal factor is unlikely. Many feel that SAD is likely due to an imbalance of the neurotransmitters melatonin and erotonin. Production of b