14 votes
Accepted

Does the usage of sunscreen cause skin cancer?

The potential health risks of sunscreen include: The absence of UVA filters combined with a longer exposure time of the sunscreen user1995, 2005, 2007, 2007. Suppression of the skin's production of ...
  • 4,687
12 votes
Accepted

What is the word for the dead skin on the upper layer of a healed wound?

Frankly, medical terminology isn't necessary and might even lead to increased confusion, especially after being translated. All medical terminology is not universal. Just state your complaint in ...
  • 9,473
11 votes
Accepted

What needs to be exposed for the body to produce Vitamin D?

Vitamin D is produced in the skin, not the eyes.(1) I would imagine that when those indigenous peoples were introduced to sunglasses, they were also introduced to a number of other items they had ...
  • 9,473
11 votes
Accepted

Is UV light necessary for vitamin D generation?

Short answer: No. Longer answer: UVB rays are essential for Vitamin D synthesis. According to some studies, 1 hour of sunshine is needed even in sunny climates - but only in average, still depending ...
  • 791
11 votes

Do we produce Vitamin D in the shade?

The exact value depends on a lot of things - skin tone, the time of day, latitude, how deep the shade is,... The study Vitamin D effective ultraviolet wavelengths due to scattering in shade found ...
  • 7,009
10 votes

Does masturbation cause hair loss for men?

The short answer is no, it doesn't, at least as long as your not also coupling it with something like auto-asphyxiation, which is so dangerous for many other reasons before hair loss. First the ...
  • 1,836
9 votes

Does the usage of sunscreen cause skin cancer?

Wearing sunscreen while out in the sun cuts your risk of skin cancer. As others have pointed out, there are some potential risks associated with wearing sun screen. However, if you are out in the sun, ...
9 votes
Accepted

Fact or Myth, Will too much smile cause wrinkles?

Wrinkles are not directly proportional to age; people have different collagen properties. Some people wrinkle far earlier than others, and in different ways. But yes, smiling does promote wrinkles ...
  • 5,694
8 votes
Accepted

When applying Neospirin to a wound, why is it advised to apply only a thin layer of it?

Like many medications you want to use the amount necessary, no more, no less. Contact dermatitis has been caused by Neosporin (and similar products). I would mention a few particular reasons: Topical ...
  • 366
7 votes

Do we produce Vitamin D in the shade?

About 1/4 - it varies with the reflectivity of the surface, and angle of the sun. Detailed study is at http://www.ncbi.nlm.nih.gov/pubmed/20199222
7 votes

Is it possible to reverse the skin cell damage caused by sunlight by taking appropriate vitamins?

No Skin damage is irreversible. The only thing you can do is make sure your skin is not damaged in the first place. Skin damage is caused by a variety of factors, but by far the most important one ...
7 votes
Accepted

If I think my mole is changing, what should I do?

Get to a doctor or dermatologist straight away A changing mole is an indicator of possible melanoma. Melanoma spreads very quickly, and mortality rates rise fast if it is left to grow. Here is some ...
7 votes
Accepted

Is constantly using oily moisturizer bad for your skin?

Your skin will not make enough protective lipids regardless of whether you use moisturizer or not. With your skin, it's actually better if you use it every day, at least on areas where you get eczema. ...
7 votes
Accepted

Can skin creases caused by obesity or exacerbated by poor posture be corrected?

Creases form all over your body. Once they do, there is really very little that can be done for them. If you doubt this, consider how much money is spent on cosmetic surgery every year just for facial ...
7 votes
Accepted

Is early morning sunlight as good as evening sunlight for health?

Actually, I am a frequent flyer (I think I spend at least 10% of my year in an airplane or an airport) and I discussed the problem of sunlight with my treating physician. First, sunlight has an ...
6 votes
Accepted

What are the risks of vitiligo, and how should I keep myself safe?

There is no cure for vitiligo, but there are treatments that may reduce the discoloring in your skin and possibly even restore skin color. The main treatments used by doctors are either restoring the ...
  • 7,727
6 votes

Does the usage of sunscreen cause skin cancer?

Your question sounds like it generalizes about all sunscreen products. But not all sunscreen products are created equal. I understand your concern because according to this report from the National ...
6 votes
Accepted

Rashes on back of knees

From the picture and the symptoms you mentioned, especially the itchiness, it seems that you are right about it being that being eczema. Also, eczema is common behind the knees. From that picture ...
  • 7,727
6 votes
Accepted

What is the process for removing moles (cancerous or non-cancerous) from skin?

There are actually a few ways that moles are removed. Cutting it off Sometimes moles can be "shaved" off if the cells don't go very deep. Other times, the mole cells will be deeper in your ...
  • 7,727
6 votes
Accepted

Is petroleum jelly comedogenic?

You are right that there are conflicting viewpoints about whether or not Vaseline and other types of petroleum jelly, also known as petrolatum, are comedogenic (can cause or worsen acne). There are ...
  • 7,727
6 votes
Accepted

Skin receptors on finger tip

I'll assume you're only asking about mechanoreceptors, else it gets too murky. Humans have four types of mechanoreceptors. Meissner corpuscle, innervated by RA1 (rapidly adapting type 1) nerve ...
  • 2,770
6 votes

Why don't gum abscesses heal on their own?

Good evening, The reason the abscesses in your mouth won't heal on their own is due to: The fact that the mouth is one of the areas of the body with the most bacteria Therefore, the immune system ...
  • 1,195
6 votes
Accepted

How does poor sleep cause circles under one's eyes?

These dark circles can likely be attributed to vascular network prominence caused by hollowing of the contents of the orbital rim, pigmentary changes in the periorbital area caused by extravasated ...
6 votes

What is the difference between eczema and urticaria?

Eczema (atopic dermatitis) Atopic dermatitis is a chronic, itchy skin condition that is very common in children but may occur at any age. It is also known as eczema and atopic eczema and was ...
  • 2,331
5 votes
Accepted

Does CO2 laser treatment work well with acne scars?

CO2 laser treatments work by vaporizing the damaged skin cells. After the procedure, you will need to take medication to reduce swelling in your eyes, but you can also ease the swelling by elevating ...
  • 7,727
5 votes
Accepted

Is there a complete cure for Limited Scleroderma?

There is no complete cure for Limited Scleroderma (LS). Luckily, there are good ways that doctors can treat the symptoms of it and help prevent any complications.1,2,3 Topical treatments - one of the ...
  • 7,727
5 votes

Are there proven natural treatments to kill acne-causing bacteria?

Before I answer, I have to say that I disagree with several claims stated/implied in your question: antibiotics or any treatment cannot be simply replaced by another; many factors have to be taken ...
  • 2,823
5 votes

Is it possible to reverse the skin cell damage caused by sunlight by taking appropriate vitamins?

You can't reverse the skin damage, but you can treat wounds and burns, so your skin cell can regenerate faster. Eating food full of antioxidants and vitamin C, such as blueberries, tomatoes, and ...
  • 4,687
5 votes
Accepted

Does frequent showering change the amount of oils our skin produces?

Shampooing The first synthetic shampoos were introduced in the 1930's and by '70s and '80s, daily shampooing became norm in the US. So shampooing in the modern sense (water to produce a soapy lather) ...
  • 4,687
5 votes
Accepted

Is there any health benefit or detriment from bathing?

One big problem here is that it's difficult to do double blind studies. One is then forced to use more theoretical arguments, but because medical science is not a hard science like physics, such ...
  • 2,228

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