Sunlight is very important for us and provides many benefits.
The benefits of sunlight are:
Sleep at night. Early morning sunlight in particular seems to help people get to sleep at night.
Weight loss. Morning light also seems to help people keep the fat off.
Boosting serotonin. Sunlight helps boost a chemical in our brain called serotonin which can give us more energy, be positive, and focused. Higher levels of serotonin correlate with better mood and feelings of satisfaction and calmness, and lower levels link to depression and anxiety.
Eye health. Moderate amounts of sun over one’s lifetime helps to maintain good eye health.
Here’s two good resources on sunlight and health : more benefits of sunlight and health. Why Sunlight Is So Good For You