Published on June 16, 2025

Sun Safety for Every Age

Protecting Your Skin in the South Bay

Summer in the South Bay is a sun-soaked dream—beaches, bike paths, and scenic hikes abound. But while we're enjoying the outdoors, it's crucial to shield our skin from harmful UV rays.

Whether you're caring for a newborn or enjoying your golden years, here’s how to stay sun-safe at every stage of life.

Infants (Under 6 Months): Shade is the Best Shield

For our littlest ones, the sun’s rays can be particularly harsh. Infants under six months should be kept out of direct sunlight. Instead of sunscreen, use physical protection and avoid exposure altogether.

Tips:

  • Dress babies in lightweight, long-sleeved clothing and wide-brimmed hats.

  • Use stroller canopies or umbrellas for shade.

  • Keep them in covered areas during outdoor activities.

Mother and child on the beach.

Children & Teens: Building Sun-Smart Habits

As kids grow, it’s essential to instill healthy sun habits early. Their skin is still developing, and they often spend long periods outside during peak sun hours.

Tips:

  • Apply broad-spectrum sunscreen with SPF 30–50 at least 15–30 minutes before going outside.

  • Reapply every two hours, or after swimming or sweating.

  • Encourage wearing protective clothing, hats, and UV-blocking sunglasses.

  • Teach kids to seek shade and understand the importance of sun protection.

Children with fair skin, light hair, and light-colored eyes are especially susceptible to UV damage and should take extra precautions.

Adults: Daily Defense is Key

Adulthood brings more freedom—and more responsibility when it comes to health. Daily UV exposure, even during short commutes or outdoor errands, adds up over time.

Tips:

  • Make sunscreen part of your morning routine, even on cloudy days.

  • Choose protective clothing and accessories when spending extended time outdoors.

  • Avoid the sun between 10am and 4pm, when UV rays are strongest.

  • Perform regular skin self-exams to monitor for new or changing moles.

Seniors: Extra Vigilance for Seasoned Skin

Cumulative sun exposure over the years increases the risk of skin cancer, including melanoma, which can be more serious if not detected early.

Tips:

  • Schedule annual skin checks with a dermatologist.

  • Use high-SPF sunscreen and apply it thoroughly and consistently.

  • Monitor skin changes closely and report any new growths or irregularities.

  • Avoid tanning and unnecessary sun exposure, especially during peak hours.

Universal Sun Safety Tips

These recommendations apply to everyone, regardless of age:

Tips:

  • Avoid tanning beds, which emit harmful UV radiation and increase cancer risk.

  • Stay hydrated, especially during hot weather, to support skin health.

  • Wear sunglasses with UV protection to safeguard your eyes.

  • Seek shade when outdoors and use umbrellas or shelters when needed.

Why Is UV Light So Bad?

UV (ultraviolet) radiation is a form of electromagnetic radiation emitted by the sun (and tanning beds — yikes). There are three types:

  • UVA: Penetrates deep into the skin, contributing to aging and wrinkles.

  • UVB: More intense; damages the skin’s outer layers and causes sunburn.

  • UVC: Thankfully absorbed by the ozone layer, so we’re not exposed to it.

Both UVA and UVB can damage your skin's DNA — and that’s where the real trouble starts.

How Does UV Light Cause Cancer?

Think of your DNA as the instruction manual for how cells grow and divide. When UV radiation hits your skin, it can cause mutations in that manual. Here's how the chaos unfolds:

  1. Direct DNA Damage:
    UVB rays can cause specific DNA mutations (e.g., "thymine dimers"), where DNA bases stick together when they shouldn't. It’s like a typo in your body's operating system.

  2. Breakdown of Repair Systems:
    Normally, your body has mechanisms to fix those typos. But repeated sun exposure overwhelms this system — it’s like having a slow IT department in charge of cyber defense.

  3. Uncontrolled Cell Growth:
    Mutations can disrupt tumor suppressor genes (like p53, the body’s built-in bouncer). Once those genes are damaged, abnormal cells can grow unchecked — boom: skin cancer.

  4. Inflammation and Immune Suppression:
    Chronic sun exposure causes inflammation and weakens local immune responses, giving damaged cells more freedom to multiply without being eliminated.

With so many outdoor opportunities in the South Bay, staying active and connected to nature is part of a healthy lifestyle. By adopting age-appropriate sun safety strategies, you can protect your skin today and reduce your risk of problems down the line.