The sun is essential to optimal health and well-being. Sensible sun exposure could greatly improve health by improving vitamin D status for disease reduction, initiating the release of nitric oxide for heart health, stimulating...
Sunlight and supplements are well known sources of vitamin D, but other sources of UV light, such as indoor tanning, can also effectively raise vitamin D levels. In addition to sun exposure habits, we...
The GrassrootsHealth panel of expert scientists’ recommended range of vitamin D levels for general health is 40-60 ng/ml (100-150 nmol/L). This is based on overwhelming evidence about the association between vitamin D and many...
One of the key factors in personalizing your sun exposure is knowing the UV Index in your area so that you don’t burn. The UV Index is a measurement of the strength of the...
Sunshine is important for health, but before you soak up the sun’s rays it’s important to assess your situation so that you don’t burn. Sun exposure needs to be individualized according to skin type,...
There are three primary types of skin cancer: basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma. A vast majority of skin cancers are BCC (~80%) or SCC (~20%). These non-melanoma skin cancers...
Current public health messaging tells us to avoid the sun due to skin cancer fears, but this advice ignores the fact that humans have a long cultural history of appreciation of the sun and...
Cognitive impairment is often a gradual, long-term process that affects many older individuals. In October 2018, results from a study assessing the association between sun exposure and cognitive function were published in the journal...
Drs. Cedric Garland and Sharif Mohr, along with others on their research team, have published numerous ecological studies on the association between UVB irradiance and the incidence of type 1 diabetes and many different...
Multiple sclerosis (MS) is a chronic, auto-immune disease that affects the central nervous system. In MS, the immune system attacks the protective covering of nerves which disrupts the brain’s ability to communicate with the...