10 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 ...
YviDe's user avatar
  • 6,982
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 ...
Atl LED's user avatar
  • 1,943
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 ...
DoctorWhom's user avatar
  • 5,784
8 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 ...
Benjamin A.'s user avatar
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 ...
anongoodnurse's user avatar
7 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 ...
enap_mwf's user avatar
  • 1,225
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 ...
rumtscho's user avatar
  • 2,791
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 ...
Bruce Kirkpatrick's user avatar
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 ...
Chris's user avatar
  • 3,263
5 votes

What causes "stretch marks" in skin?

What causes these stretch marks? Stretch marks (striae) are caused by intradermal tears, that means tears that occur within the skin layers. These tears are caused when two things happen at the same ...
neerajt's user avatar
  • 711
5 votes
Accepted

Is it a good idea to use neosporin for opened blisters?

As per its description, Neosporin can be used for minor cuts and scrapes, which seem to fit well to your description of opened blister. The picture provided shows a shallow opening. I doubt ...
Ébe Isaac's user avatar
5 votes

Why are airplane pilots more likely to have skin cancer?

A recent study confirmed the increased risk of airline pilots of a certain type of skin cancer (basal cell carcinoma or "BCC"). Incidence of cancer among licenced commercial pilots flying North ...
Dr SD's user avatar
  • 81
5 votes
Accepted

Biochemistry of (tap water) iontophoresis?

Tap‐water iontophoresis (TWI) using direct current (DC) is considered by some to be the most effective therapy in palmoplantar hyperhidrosis, although it is debated that botulinum toxin injections may ...
Chris Rogers's user avatar
  • 6,164
5 votes
Accepted

Can you prevent skin tags?

CAUSES and RISK FACTORS of skin tags In general, the exact cause and therefore prevention of skin tags is not known (Emedicine). In some cases, skin tags could be associated with the following ...
Jan's user avatar
  • 15.8k
5 votes

“There is a very strong correlation between consuming dairy products — such as milk — and acne, skin breakouts and aging.”

These are biologically plausible effects supported by moderate quality observational evidence. As a personal aside, I do not believe there is enough evidence for harm to recommend eliminating dairy ...
De Novo's user avatar
  • 3,188
5 votes

“There is a very strong correlation between consuming dairy products — such as milk — and acne, skin breakouts and aging.”

If the main thrust of the question is indeed expressed in the title and tags of the question: Q “There is a very strong correlation between consuming dairy products — such as milk — and acne, skin ...
LаngLаngС's user avatar
  • 6,887
5 votes
Accepted

Can tacrolimus creme cause tacrolimus toxicity?

Yes, it is possible for topical Tacrolimus to cause systemic toxicity, in certain situations. Evidence from a case series This paper is a case report of two patients who were prescribed topical ...
Chris's user avatar
  • 3,263
5 votes
Accepted

Does the damage from sun exposure outweigh the benefit of getting vitamin D?

I like your curiosity and logical thinking - you're just missing a few pieces of the puzzle. The sun emits ultraviolet light radiation which is the component of sunlight that is able to damage skin. ...
Andrew's user avatar
  • 382
5 votes

Is it true that freckles have zero potential for malignant transformation?

I don't think there is much medical science here, just interpretation of language and writing. "Freckles have zero potential for malignant transformation" is not a statement of scientific ...
Bryan Krause's user avatar
  • 13.7k
5 votes

How do clinicians prevent haloperidol-induced seborrheic dermatitis?

They don't, because they can't predict who will have such a reaction. The incidence of drug-induced skin reactions due to psychotropic drugs has been reported at 0.1% The incidence of the skin ...
anongoodnurse's user avatar
4 votes
Accepted

Does taking Vitmain B-Complex with zinc through tablets really help in reversing hair fall

I found an expert answer for your question. May be this will help you to take right decision. NDTV Doctors: "There is no harm in taking a combination of B-complex vitamins with zinc but there is ...
Tanvi sahani's user avatar
4 votes

What is the mechanism of action of Alphosol dandruff treatment?

I can offer only partial answer to your question, and that is on how this shampoo works. From The Electronic Medicines Compendium: Mechanism of action Coal tars suppress DNA synthesis in hyperplastic ...
Lucky's user avatar
  • 2,833
4 votes
Accepted

What is the mechanism of eczema?

TLDR: The pathogenesis of eczema is multifactorial, but broadly follows a process of genetic (or epigenetic, in the case of the early gut microbiome) dysregulation relating to barrier integrity ...
Bruce Kirkpatrick's user avatar
4 votes
Accepted

Does wart treatment (such as freezing) kill the wart or only triger the bodies natural immune reaction?

It does both. The center of the wart is weakened/killed with the acid/nitrogen(cold), while the periphery is damaged (both the wart and the skin around it). Because the wart is weakened, the body'...
enap_mwf's user avatar
  • 1,225
4 votes

Is it a good idea to use neosporin for opened blisters?

See this from the AAD about wound care. See this from Medscape for interesting info on wound healing. Studies are mixed whether there are clear improved outcomes from using antibiotic ointments (...
DoctorWhom's user avatar
  • 5,784
4 votes

Is ASEA supplement useful against scars or it is a fake product?

I was quite skeptical to read the word describing the product in the questions title. But there is really no weaker word allowed to describe this extraordinary scam. Their website is full of it but ...
LаngLаngС's user avatar
  • 6,887
4 votes
Accepted

Do UV-B emitting lamps for reptile pets produce vitamin-D in human skin?

In short: UV bulbs for reptiles and tanning beds emit mainly UV-A, which does not promote vitamin D synthesis but can promote skin cancer. UV light and vitamin D synthesis (Skin Cancer Foundation): ...
Jan's user avatar
  • 15.8k
4 votes
Accepted

What treatments are available for dandruff/psoriasis

It’s important to clarify that in a clinical setting, dandruff is associated with seborrheic dermatitis, which is not (and is not treated) the same as psoriasis. From UpToDate: Seborrheic ...
Bruce Kirkpatrick's user avatar
4 votes
Accepted

Can the use of hydrogen peroxide in dentistry worsen the oxidative stress in patches of facial vitiligo vulgaris?

There are several components to this question: Is hydrogen peroxide (as used in dental hygiene procedures) absorbed into the body in significant quantities? Could absorbed hydrogen peroxide have ...
Chris's user avatar
  • 3,263
4 votes

Why do herpes virus infections (apart from chicken pox) resolve without dermatological sequelae?

I apologize in advance, a lot of the papers referenced may be paywalled. There's a lot of literature on the various Herpesviridae and it is a large pleotropic family, producing such viruses as ...
bob1's user avatar
  • 3,101

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