Why City Life is Slowly Killing You (and How Nature Heals)

Today, we’ll focus on one of the most overlooked pillars especially for city-dwellers.

Backed by research, I’ll explain why this pillar is absolutely essential for your energy, hormones, sleep, and long-term health: sunlight and nature. 1

Why Sunlight Matters

In recent years, ‘soaking in the sun’ became popular as a way to optimize vitamin D3 levels. 2

But sunlight is much more than that it’s a biological necessity hard-wired into our evolution. 3

Yes, UVB rays help your skin produce vitamin D (vital for bone strength, immunity, and overall health).

But that’s only the beginning.

The entire spectrum of sunlight UVA, visible light, infrared plays critical roles in regulating your brain, body, and hormones.  4

For example:

• Morning sunlight entering your eyes and hitting your skin sends a signal to your master clock in the brain, saying ‘It’s daytime; be alert.’ 5
• This early light primes metabolism, immune function, and the nighttime melatonin cycle for deep sleep. 6
• Infrared light (which you feel as warmth) penetrates deep, improving circulation, reducing inflammation, and aiding tissue repair. 7
• Visible blue light in the morning boosts alertness and mood. 8
• UVA contributes to nitric-oxide release, which supports vascular health.

In other words: the sun’s rays are an orchestra health happens when you listen to the whole symphony, not just one instrument.

Of course, sunlight has its double-edge side.

Too much UV exposure (especially mid-day without protection) can cause DNA damage, sunburn, and higher skin-cancer risk.  9

And conversely, too little exposure (as happens when you work indoors all day or are glued to screens) leads to deficiencies not just vitamin D, but circadian misalignment. 10

So balance is the key.

Don’ts:

• Don’t avoid the sun completely.
• Don’t rely on artificial lighting to replace natural light  especially late at night.
• Don’t stay indoors, screen-bound, expecting to sleep well or be healthy.

Do’s:

• Expose yourself to natural sunlight within the first hour of your day. 15-30 minutes of morning (and afternoon) sun makes a measurable difference in energy, mood, and natural sleep onset.  11
• Take breaks outside during the workday. Even short time in nature boosts health across ages.  12
• Respect the sun’s rhythm: soft sun (sunrise/sunset) helps reset your biological clock; midday sun (in moderation) helps vitamin D production. 13
• View sunlight and nature not as luxury or threat, but as essential nourishment, as vital as the food you eat or the water you drink. 14

Sunlight is just one part of the story. Humans weren’t designed to live in sealed boxes of concrete, air-conditioning, WiFi routers.

We were designed to live in nature, and our biology still remembers that.

• Grounding (earthing), placing your bare feet on soil, grass, or sand: simple but powerful research shows it reduces inflammation, calms the nervous system, and improves sleep. 15
• Fresh, natural air, unlike recycled indoor air, is rich in negative ions and phytoncides (aromatic compounds from trees) which boost immunity, reduce stress, and improve brain clarity.  16
• Studies show children with more access to green space had significantly lower risk of psychiatric disorders later in life. 17
• Time near water (‘blue mind’) lowers cortisol, boosts mood, and improves connectedness. 18

When you combine sunlight, fresh air, grounding, and natural surroundings you’re syncing your biology back to its original setting. 19

The body doesn’t just relax  it remembers. It remembers how to sleep, how to breathe, how to repair, and how to thrive.

If you spend most of your waking hours indoors, behind screens, under artificial light and in climate-controlled rooms, you’re missing a large part of what it means to be truly healthy.

You might workout, you might eat well but you’ll still be moving through life in a way your body wasn’t designed for.

Carving out 20–30 minutes every day to step outside, breathe deeply, soak in sunlight, or wander barefoot in natural surroundings is not optional it’s essential if you want to reach the Green Zone of health.

If you’d like my e-Book titled ‘11 Core Pillars of Health: Green Zone Living’, just click on its name to download it.

Thank you for your time.

1. How does city life affect health?
City life reduces exposure to sunlight and nature, which can disrupt sleep, hormones, immunity, and mental well-being.

2. Why is sunlight important for health?
Sunlight regulates circadian rhythm, supports vitamin D production, improves mood, and enhances overall biological function.

3. How much sunlight should you get daily?
Ideally, 15 to 30 minutes of sunlight exposure daily, especially in the morning, supports optimal health.

4. What are the benefits of spending time in nature?
Nature reduces stress, improves mental clarity, boosts immunity, and helps restore natural biological rhythms.

5. Can lack of nature cause health issues?
Yes, limited exposure to natural environments is linked to increased stress, poor sleep, and reduced overall health.