loader image
Sunday, October 19, 2025
86.1 F
McAllen
- Advertisement -

Why Sunscreen is a must Before and After Water Fun

Translate to Spanish or other 102 languages!

Sunscreen is a must before and after water fun. Newswise Image

Mega Doctor News

- Advertisement -

By LifeBridge Health

Newswise — Overexposure to ultraviolet (UV) rays is the cause of most skin cancers.

Artificial sources of UV radiation include tanning beds; sun lamps and sunbeds; lasers; mercury vapor lighting; and halogen, fluorescent and incandescent lights. Sunlight is the main source of UV radiation. Even on a cloudy day, you can be exposed to harmful UV rays.

- Advertisement -

But did you know your skin is exposed to higher levels of UV rays when you’re in pools and natural bodies of water?

“The exposure intensity is higher under water than it is above water,” says Arun A. Mavanur, M.D., a surgical oncologist at the Alvin & Lois Lapidus Cancer Institute at LifeBridge Health. “UV rays also are reflected off the surface of the water, so overall you tend to get more exposure while you’re in the water.”

It’s important that you apply sunscreen to areas of the skin not protected by clothing at least 15 to 30 minutes before heading outdoors and then reapply it every two hours while outdoors. You should also remember to reapply sunscreen after swimming.

Many people assume it’s OK to apply sunscreen only once a day if it has a high Sun Protection Factor (SPF) rating. The SPF rating, however, shouldn’t be construed as an indicator of how long you can stay in the sun or how frequently you should apply your sunscreen. Rather, it is simply a measurement of the sunscreen’s effectiveness in protecting the skin from UV light.

- Advertisement -

Another misleading aspect of sunscreen is waterproof protection. It’s OK to use sunscreens labeled “water-resistant,” but Mavanur cautions that “there really is no such thing as a waterproof sunscreen, so once you get out of water, it’s important to reapply it.”

Actually, water-resistant sunscreen lasts only 40 to 80 minutes on wet skin, which is why you must reapply it not only after spending time in the water but also after sweating heavily. “If you’re out in the sun and working in the garden and sweating, you still have to apply sunscreen every couple of hours,” Mavanur says.

Use a broad-spectrum, water-resistant sunscreen with an SPF of 30 or higher. The “broad-spectrum” factor is crucial because it protects against the two main types of UV light that contribute to your risk of skin cancer: Ultraviolet A (UVA), which is associated with skin aging, and Ultraviolet B (UVB), which is associated with sunburn and thought to cause most skin cancers. An SPF-30 sunscreen blocks 97% of the sun’s UVB rays.

- Advertisement -
- Advertisement -

- Advertisement -

More Articles

The Human Bean’s “Coffee for a Cure” to Benefit The Renaissance Cancer Foundation, Oct. 17th

The Human Bean located at 1124 E. Nolana in McAllen is inviting coffee-lovers to "drink pink" on October 17 for their annual “Coffee for a Cure” breast cancer giveback event. All food and beverage proceeds on that day will benefit the Renaissance Cancer Foundation, marking The Human Bean’s largest fundraiser of the year.

2025 DHR Health Fashion Show & Gala Honoring Heroic Patients

The Edinburg Conference Center at Renaissance was filled with emotion, gratitude, and hope on Wednesday, October 15, 2025, as DHR Health hosted its 2025 Fashion Show & Gala Honoring Heroic Patients. The annual event celebrated breast cancer survivors and highlighted the importance of breast reconstruction awareness, education, and innovation in women’s health care.

STHS Children’s Partners with Spirit Halloween for Pre-Halloween Party for Patients

Due to fears related to any pain they may be experiencing, the unknown environment with strange sounds and unfamiliar faces and separation from family and friends, a hospital stay can result in stress and anxiety in children.

HHSC Encourages Preventive Care During Breast Cancer Awareness Month

The Texas Health and Human Services Commission is encouraging preventive care and screenings for women during Breast Cancer Awareness Month in October.
- Advertisement -
×