First of all, to think is to prevent poor test scores, win at business and otherwise be successful. And, if I think and remember clearly, I also prevent mental disabilities such as Alzheimer’s. Consequently, there are innumerable pills on the market that purportedly increase the ability to think. But you may need only one pill to improve your cognitive ability: the sunshine pill. It is most noteworthy that I’m not talking about vitamin D. Therefore, the sunshine pill is not really a pill at all. Rather, it is exposure to the UV light of sunlight itself, which helps prevent myriad diseases. Maybe we should call it the “magnificent non-pill.”
How does the sunshine pill help us to think?
Recent research shows that exposure to sunlight causes a cascade of chemical reactions that help us to think. Especially relevant is the fact that exposure to UV elevates a natural chemical known as blood urocanic acid (UCA). This chemical then crosses the blood-brain barrier. This chemical is then converted by a metabolic process to glutamate, and consequently, nerve synapses in the brain are enhanced. As a result, there were improvements in both physical learning (motor learning) and object recognition memory, which is an ability to think.
Is there more research indicating that sun exposure enhances the ability to think?
In addition, the ability to think has been shown in many research studies to improve with sunlight. Most noteworthy is a 2013 article, published in the journal Neurology. It reveals that among people with high sun exposure, the risk of Alzheimer’s disease (AD) is profoundly decreased. Therefore, they are able to think more clearly than those who receive low sun exposure.
Finally, research published in the journal Endocrinology, sums up the effects of the sun on the brain and body: It is entitled, “How ultraviolet light touches the brain and endocrine system through skin, and why.” The authors begin their abstract by stating that “the skin is a self-regulating protective barrier organ that is empowered with sensory and computing capabilities to counteract the environmental stressors to maintain/restore disrupted cutaneous homeostasis.” In other words, the skin has the ability to take on what life deals it, and maintain its equilibrium and balance. In addition, the skin communicates bidirectionally with the central nervous, endocrine and immune systems. Thus, it helps to maintain balance for all body systems, including the ability to think.
Safely soak up the non-burning sunlight and enhance your intelligence!
 Zhu et al., 2018, Cell 173, 1–12, June 14, 2018
 White RS, Lipton RB, Hall CB, Steinerman JR. Nonmelanoma skin cancer is associated with reduced Alzheimer disease risk. Neurology. 2013 21;80(21):1966-72.
 Slominski AT, Zmijewski MA, Plonka PM, Szaflarski JP, Paus R. How ultraviolet light touches the brain and endocrine system through skin, and why. Endocrinology. 2018 Mar 12. [Epub ahead of print]