We’ve been led to believe that the sun is something to avoid. People wear long sleeves and slather sunscreen all over themselves in an effort to avoid the evils of the sun. What we seem to have forgotten is that throughout human history humans have lived in synchrony with the rhythms of nature, with the cycles of light and dark.

We need the sun. Vitamin D production is the most obvious reason we need exposure to the sun. During Covid it was clear that the vast majority of those that experienced a severe illness were also on the low end of Vitamin D levels. Here are a few of the other benefits we gain from sun exposure:

• Regulates sleep cycles: Sunlight helps synchronize the body’s circadian rhythm, improving sleep quality by influencing melatonin production678.
• Boosts mood and mental health: Exposure to sunlight increases serotonin and endorphin levels, which can elevate mood, reduce stress, and lower the risk of depression678.
• Supports immune function: Sunlight exposure can modulate the immune system, enhancing its ability to fight infections and reduce inflammation137.
• Lowers blood pressure: UV exposure stimulates the release of nitric oxide from the skin, which helps dilate blood vessels and decrease blood pressure, supporting cardiovascular health1347.
• Improves metabolism and weight regulation: Sunlight may play a role in metabolic processes and help control body weight17.
• Increases energy levels: Regular sunlight exposure can help combat fatigue and boost overall energy8.
• Promotes a sense of well-being: Sunlight exposure is linked to greater feelings of relaxation and general well-being, independent of vitamin D158.

When it comes to avoiding the sun the most common strategy is the liberal use of sunscreen. Sunscreens have significant downsides.

Most Sunscreens Fall Short

According to the Environmental Working Group, nearly three-quarters of sunscreens either fail to deliver the protection they promise or contain ingredients that raise health concerns. In fact, many products don’t even provide the SPF listed on their labels.

Oxybenzone Use Is Down—But Not for Your Health

The use of oxybenzone, a controversial sunscreen ingredient, has dropped from 70% of products in 2016 to just 9% in 2025. However, this change wasn’t made for consumer safety. Instead, bans in places like Hawaii and Key West—due to the chemical’s harmful effects on coral reefs—forced manufacturers to reformulate.

Chemical Concerns in Sunscreens

Many commercial sunscreens still contain chemicals like oxybenzone, avobenzone, octinoxate, octocrylene, and homosalate. These substances are readily absorbed through the skin and have been detected in blood, urine, and even breast milk.

A recent FDA study found that after a single application of sunscreen to most of the body, blood levels of oxybenzone and avobenzone can far exceed the FDA’s safety threshold (PMID: 31961417). Some studies suggest these chemicals may disrupt hormones and affect the endocrine system (PMID: 40222174).

The European Commission has determined that oxybenzone and homosalate are not safe at concentrations commonly used in sunscreens, and octinoxate is only considered safe at lower levels. While Europe is restricting these chemicals, they remain widely used in the United States.

Is Sun Exposure Really the Enemy?

Mainstream advice often warns against any sun exposure, but this perspective overlooks the benefits of sunlight. Sunlight triggers the production of nitric oxide, which can lower blood pressure and support cardiovascular health (PMID: 24445737). It also boosts testosterone and vitamin D levels, and stimulates the release of beta-endorphins, which improve mood and reduce inflammation (PMID: 32375348, PMID: 24949966).

The Role of Diet in Sun Sensitivity

Emerging research points to diet—particularly high intake of omega-6 linoleic acid from seed oils—as a factor that increases susceptibility to sun damage. Animal studies have shown that diets rich in linoleic acid lead to higher rates of skin cancer (PMID: 21525235).

Some studies link the rise in melanoma rates since the 1960s to increased consumption of seed oils, rather than more sun exposure (PMID: 16372927, PMID: 29636341).

Linoleic acid from seed oils becomes part of your skin cells, making them more prone to damage from UV light. Ironically, many “natural” sunscreens use these same oils as their base.

Practical Steps for Safer Sun Protection

• Avoid chemical sunscreens: Choose mineral-based alternatives that don’t rely on potentially harmful chemicals.
• Build natural sun tolerance: Start with short periods of sun exposure during less intense hours and gradually increase over time. This helps your skin develop a natural protective tan.
• Clean up your diet: Eliminate seed oils such as canola, soybean, corn, sunflower, safflower, and peanut oil. Avoid processed and restaurant foods that contain these oils. Instead, opt for grass-fed beef tallow, grass-fed butter, or moderate amounts of coconut oil.

By reconsidering both what you put on your skin and what you eat, you can take a more holistic approach to sun protection and overall health.

About Dr. Berkowitz  

Dr. Bill Berkowitz is a dedicated chiropractor who brings reliability and depth to his practice at Life Chiropractic in western Nevada County. Focused on addressing chronic issues like low back pain, headaches, and anxiety, Dr. Berkowitz delivers patient-centered care rooted in proven methods without unnecessary extras.

Life Chiropractic, founded by Dr. Bill Berkowitz, offers reliable and results-driven chiropractic care for residents of western Nevada County. With a focus on foundational health solutions, the practice prioritizes quality and effectiveness to help clients achieve relief from chronic issues without unnecessary add-ons.

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