What Are Common Skin Health Myths You Should Stop Believing?

TL;DR

Healthy skin is not just about a flawless appearance; it's a complex organ that protects, regulates temperature, and produces vitamin D. Sunscreen is essential for everyone, regardless of skin tone, to prevent damage from UV rays. Additionally, pore sizes can't be shrunk, and there's no confirmed link between chocolate and acne, emphasizing the importance of a balanced diet for skin health.

Transcript

Transcriber: We put a lot of importance into caring for our skin, which makes sense, since it's the first thing other people see. Skin might also be one of the most misunderstood parts of our bodies, so today, I'd like to run through some of the most common myths we have about our skin. (Music) [Body Stuff with Dr. Jen Gunter] (Music) Myth number ... Read More

Key Insights

• 🤔 Healthy skin is more than just looking flawless; it's a complex organ with different layers and functions, including protection, synthesis of vitamin D, and detecting pathogens.
• 🌞 Sunscreen is crucial even on cloudy days to protect our skin from damaging UV rays, which can lead to sunburn, aging, and skin cancer. Choose a broad spectrum sunscreen with SPF 30 or higher.
• 🌍 People with darker skin still need sunscreen because although they may have some natural protection due to melanin, it's not sufficient. Racism in medicine contributes to delayed diagnosis of skin cancer in people of color.
• 🔍 Pore size is largely determined by genetics and can't be shrunk, but they can expand when irritated. Use noncomedogenic products to avoid pore blockage.
• 🍫 The link between chocolate and acne is inconclusive. Studies suggesting chocolate aggravates acne are small, while studies absolving chocolate have potential bias. Opt for a healthy diet that benefits both your body and skin.
• 💙 Taking care of our skin includes wearing sunscreen, monitoring moles, and seeing a dermatologist for any changes.
• 🌞⌛ Ultraviolet rays damage our skin's DNA, causing aging and potentially leading to skin cancer over time.
• ✨ Our skin is a remarkable organ that serves multiple functions and deserves proper care and attention.

Questions & Answers

Q: What is the outer layer of our skin called and what cells make it up?

The outer layer of our skin is called the epidermis. It is made up of different cell types, including keratinocytes, melanocytes, and Langerhans cells. Keratinocytes are replaced every four weeks and form a harder layer that is difficult for water or microbes to cross. Melanocytes produce melanin, our skin pigment, and Langerhans cells act as security guards against pathogens.

Q: What is the second layer of our skin called and what structures are found in it?

The second layer of our skin is called the dermis. It is a tough scaffold of collagen and is home to blood vessels, hair follicles, and glands. The dermis also contains sensory receptors that allow us to feel pressure, vibration, and pain. It plays a role in regulating temperature by contracting or expanding blood vessels.

Q: Do we only need sunscreen on sunny days?

No, we need sunscreen even on cloudy days. Ultraviolet rays from the sun can damage our skin's DNA. UVA rays penetrate the dermis, causing aging, while UVB rays cook the epidermis, leading to sunburn. Our skin's defense mechanism is to release more melanin and tan when exposed to UV, but this is a sign of damage. Wearing broad spectrum sunscreen with an SPF of 30 protects against sunburn, early aging, and skin cancer.

Q: Do people with darker skin need sunscreen?

Yes, people with darker skin still need sunscreen. While having more melanin does offer some natural sun protection, it is not enough to fully ward off damage. Black and Hispanic patients are actually more likely to have skin cancer detected at advanced stages due to systemic racism in medicine. Dermatologists, who are predominantly white, are trained to diagnose on white skin, leading to delayed screenings and diagnoses for people of color.

Q: Can you shrink your pores?

No, you cannot shrink your pores. Pore size is largely determined by genetics and they do not actually shrink. However, they can appear larger when our skin is irritated by makeup or harsh products. Using noncomedogenic products that won't clog pores is recommended by dermatologists for maintaining healthy skin. Pore minimizers do not actually work.

Q: Does chocolate cause acne?

The link between chocolate and acne is not conclusive. Studies that suggest chocolate aggravates acne tend to be small, while studies that absolve chocolate of blame are sometimes funded by chocolate makers. The role of diet in acne is complex, but research suggests that a healthy diet overall may be beneficial for both our body and our skin. It's important to treat our skin well, wear sunscreen, and consult a dermatologist if there are any changes.

Summary & Key Takeaways

• Healthy skin is more than just a flawless appearance. It is a complex organ with various functions, including producing vitamin D, protecting against pathogens, and regulating temperature.

• Sunscreen is important even on cloudy days. Both UVA and UVB rays from the sun can damage the skin and lead to sunburn, aging, and skin cancer. Using broad-spectrum sunscreen with SPF 30 is recommended.

• People with darker skin still need sunscreen. While melanin provides some natural protection, it is not sufficient. Racism in the medical system has led to delayed diagnoses and higher rates of skin cancer in people of color.