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Different techniques measure hair properties to ensure cosmetic products work.

Scalp flaps are stiffer than skin from other body areas, which helps in planning reconstructive and cosmetic head surgeries.

Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.

The new Mercedes flap variant effectively closed medium-sized scalp defects in a single operation with good cosmetic results and no complications.

The conclusion is that exogen is a unique hair cycle phase and the new sampling method specifically targets this stage, which may help in future hair loss research.

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

A new topical solution safely reduces hair shedding by 38% on average by tightening a muscle in the scalp.

Repeated PRP injections for hair loss can cause increased pain sensitivity.

Testosterone therapy improves physical function, strength, and body composition in older men with low testosterone levels.

The Rotterdam Study updated its design and objectives in 2012, providing insights into various diseases in the elderly, including skin cancer, bone health, liver disease, neurological and psychiatric conditions, and respiratory issues.

Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.

The trial aims to understand how obesity and lifestyle affect circadian rhythms in people with schizophrenia and bipolar disorder.

Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Fusion proteins can protect hair from heat damage.

Using a certain drug on the skin can help prevent hair loss caused by pulling on the hair.

Mesenchymal stem cells could help treat aging-related diseases better than current methods.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

The Rotterdam Study aims to understand various diseases in older adults.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

Higher testosterone levels can increase the risk of certain diseases like type 2 diabetes in women and prostate cancer in men, but can also protect against autoimmune diseases and hair loss. It also affects body fat and bone density.

Increased free testosterone can lead to stronger bones and less body fat but also higher risks of prostate cancer, hair loss, spine issues, and high blood pressure.

Keratin-based particles safely improve hair strength, smoothness, and heat protection.

Creatine monohydrate is safe and effective for muscle recovery and performance, especially for those with low creatine levels.

Various techniques and tools for hair restoration were presented in 1998, including a mathematical model for donor area, use of lasers in surgery, methods for controlling grafted hair direction, and ways to increase graft yield. Satisfaction rates were around 39%, and studies showed trauma and dehydration can damage hair follicles.

Men with advanced liver disease and high oestrone and low testosterone levels have worse health outcomes.

Cynatine HNS improves hair and nail quality in 90 days.

Sex hormone treatments can increase muscle mass in older adults but have inconsistent effects on muscle function and may carry cardiovascular risks.

Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.

Long-term high testosterone levels can improve bone density and reduce body fat but may increase the risk of prostate cancer and high blood pressure.