We are all told to stay out of the sun and protect our skin to keep it younger-looking and avoid skin cancer, brown spots, discoloration, etc. The problem is, the sun helps our body provide Vitamin D, an important nutrient that is crucial to bone, brain and skin health.

Here are 7 signs that you are deficient in vitamin D

1. Your Bones Ache
People with aches, pains and tiredness are often diagnosed as having chronic fatigue syndrom or fibromyalgia. However, these symptoms can show a vitamin D deficiency as less calcium is absorbed by the skeletal systems.

2. Your Muscles are Weak
Muscle strength isn’t just about weight lifting. Vitamin D deficiency can be associated with muscle weakness, and researchers at Harvard have found that vitamin D supplementation can increase muscle control significantly, with adults over 60 reporting 20% fewer falls. According to the Western Journal of Medicine, D-linked muscle weakness can be eliminated within just six months with supplements.

3. Your Head Sweats
A sweaty head is considered a classic symptom of vitamin D deficiency, according to medical professionals. In the past, doctors used to ask new moms if their newborns had this symptom. If your head is constantly sweaty or you find that is sweats excessively, you may need more vitamin D.

4. You’re Depressed7 signs you are vitamin D deficient
The hormone Serotonin is linked to mood and wellbeing. Serotonin is stimulated by sunlight. n recent studies, people with the least amounts of vitamin D were more likely to be depressed than those who had ample doses. Studies also link low vitamin D levels in the blood with other mood disorders besides depression, like premenstrual syndrome and seasonal affective disorder.

5. You Have Chronic Health Problems
If you have chronic health problems and are prone to seasonal illnesses, your vitamin D levels may be too low. An Asian study of kids supplementing 1,200 units daily during winter lessened their risk of the flu by around 40 percent. Actually, recent research indicates that vitamin D plays a much bigger role in fighting disease than once thought. Being deficient can increase your risk of cancer and other deadly diseases.

6. You Feel Exhausted
In some studies, a lack of vitamin D has been identified in patients with fatigue, and once vitamin D levels were corrected, patients felt considerably more energetic. In actual fact, medical researchers suspect that vitamin D deficiency and chronic fatigue syndrome are closely linked. A simple blood test can determine if you are getting enough vitamin D each day.

7. You Have Dark Skin
Surprisingly, African Americans and people with dark skin are significantly more likely to be vitamin D deficient, say professions, because the skin’s pigment acts as a natural sunscreen. In fact, a person with dark skin is said to need ten times more sun exposure to produce the same amount of vitamin D as someone with a light complexion. A SPF30 sunscreen can reduce the skin’s ability to produce the vitamin by over 95 percent.