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C57BL/6 mice and SD rats have different sweat gland and hair follicle patterns, useful for skin research.

Hair clipping can trigger axon growth and changes in the skin.

Microstimulation of certain facial and mouth nerves can evoke specific sensations, while deeper nerves may require multiple stimulations to affect perception.

Neurotrophins regulate nerve growth by balancing promotion and suppression.

Erk signaling helps zebrafish fins regrow to the right size by using memory of the original size.

In ptosis, brow elevation doesn't lift the eyelid but is driven by efforts to raise the eyelid.

The back of the scalp has more nerve fibers than the front, which may explain why some people feel more sensitivity there.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Hair follicles have a pH gradient, increasing towards the root.

Delta opioid receptors help regulate touch sensation by reducing neurotransmitter release in the spinal cord.

Touch sensitivity in mouse skin decreases during hair growth due to changes in touch receptors.

The document concludes that MGRN1 affects mouse fur color by interfering with a receptor's signaling, but its full role in the body is still unknown.

A compound named ZCZ90 can increase muscle spindle firing, potentially helping treat muscle spasms and hypertension.

Activin A and follistatin control when ear hair cells form in mice.

Less attractive male venture capitalists take more risks influenced by entrepreneurs' looks, while more attractive ones are generally risk-tolerant.

Sensory neuron remodeling and Merkel-cell changes in the skin happen independently.

Powered exoskeleton training improves body perception and quality of life in spinal cord injury patients.

Hairy skin feels prickling more intensely than smooth skin.

FGFs have evolved differently across species, affecting skin and wound healing.

Mechanoreceptors convert physical touch into electrical signals through specialized nerve structures.

Merkel cells stabilize nerve endings in the skin, and they change independently of each other.

Light tickling can be unpleasant and may feel worse for individuals with autism.

Some people grow more hair on one side of their scalp, possibly due to genetics, behavior, or environment.

Skin cell behavior is influenced by the tightness of nearby cells, affecting their growth and development.

Mice lacking steroid 5α-reductase 2 show less aggression and better impulse control.

Natural hairline asymmetry should be embraced for better-looking hair transplants.

Mouse skin fibroblasts vary in function and adaptability based on their environment.

The authors suggest standardizing how the heart's electrical axis is calculated to improve precision and consistency in ECG analysis.

GRHL3 is important for controlling gene activity in skin cells during different stages of their development.