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Sun-exposure can reduce chances of getting cancer
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Correlation is not causation. However, there is correlation between sun-exposure and lower cancer cases. But the Sun is the cause of our survival. Without any doubt. Not even secular doubt 
So I consider correlation with the Sun take sincerely.
Did you do सूर्य नमस्कार today?
Is your home properly ventilated?
Does your kitchen receive sun-rays daily?
Does your water-pot receive sun-rays daily?
What about bed-room?
Couple of days back, I shared importance of Sun salutation. सूर्य नमस्कार is the prime vaccine against all immunological disorders, including inflammatory conditions, cancers etc.
With growing age, reproductive organs of females pass through aging and gradual non-functioning. This is the time when they pass through mental trauma and unforeseen physical conditions. Sometimes cancer.
Breast cancer is the second most common cancer among women in the United States. About 1 in 8 women will develop breast cancer in their lifetime.
Do you know why we are in this mess?
We really don’t spend much of the time on physical activities. Sun exposure is minimal.
Early epidemiologic research showed that incidence and death rates for certain cancers were lower among individuals living in southern latitudes, where levels of sunlight exposure are relatively high, than among those living at northern latitudes. Because exposure to ultraviolet light from sunlight leads to the production of vitamin D, researchers hypothesized that variation in vitamin D levels might account for this association. However, additional research based on stronger study designs is required to determine whether higher vitamin D levels are related to lower cancer incidence or death rates.
Experimental evidence has also suggested a possible association between vitamin D and cancer risk. In studies of cancer cells and of tumors in mice, vitamin D has been found to have several activities that might slow or prevent the development of cancer, including promoting cellular differentiation, decreasing cancer cell growth, stimulating cell death (apoptosis), and reducing tumor blood vessel formation (angiogenesis)
