Sun safety is more important than you think

Over 80,000 cases of skin cancer are diagnosed in Canada each year. About 90% of these are caused by UV rays.

There are two main types of UV rays – UVB and UVA – that can cause damage to the skin and possibly result in skin cancer. While UVB reaches the outer layer of the skin (the epidermis) and causes most sunburns, UVA reaches deeper into the inner layer (the dermis) and is responsible for ageing the skin.

1. Sunscreen is not required when under cover.

Myth: There's a common misconception that shade offers full protection from the sun's harmful UV rays. However, indirect exposure occurs when sunlight reflects off surfaces even when under shade, such as water or sand at the beach. It's challenging to stay fully covered as the sun moves quickly. Hence, applying sunscreen remains essential for complete protection.

2. Sunscreen serves as your primary defense against sunburn

Myth: Sunscreen and sunblock are essential alongside the primary UV protection method: avoidance. Aim to remain indoors during the peak hours of 11 a.m. to 3 p.m., utilize clothing that offers sun protection, such as a broad-brimmed sun hat, and apply sunscreen or sunblock, while seeking shade whenever possible. The Canada Safety Council highlights that up to 70 percent of skin cancer instances can be averted by evading UV ray-induced skin damage.

3. You won't experience sunburn inside a vehicle, behind a window, or beneath a beach umbrella

Myth: You can experience sunburn even while indoors behind glass. Although glass diminishes UV radiation, it doesn't entirely prevent it, so extended exposure in a car or behind a window during high UV conditions can still result in sunburn. Additionally, individuals are often sunburnt in cars with open windows, as they are exposed to heightened levels of UV radiation.

Seeking shade or sheltering under an umbrella is a prudent measure, but it alone may not suffice.

4.  Apply sunscreen once daily, and you're all set!

Myth: A single application won't provide protection throughout the entire day. This is due to sunscreen, like makeup, being prone to rubbing off with water, sweat, and contact. Dermatologists advise reapplication at least every two hours or following swimming or perspiration. This practice is crucial, as sunscreen not only washes away but also deteriorates under sunlight, diminishing its effectiveness. Learn more about why you should wear sunscreen every day.

5. Sunscreen may be ineffective or potentially harmful.

Fact: Scientific research supports the effectiveness of sunscreen in shielding against sun damage, lowering the risk of all three skin cancer types: squamous, basal, and melanoma, as well as averting sunburn, premature aging, and other related skin issues.

In Canada, where sunlight exposure varies significantly, sunscreen is vital for safeguarding the population. The Canadian Dermatology Association's study revealed nearly 80,000 new cases of skin cancer annually, making it the nation's most prevalent cancer. Adhering to proper sunscreen application is essential in mitigating these occurrences.