Aging is a major cause of many degenerative diseases. The most intuitive consequence of
aging is mainly manifested on the skin, resulting in cumulative changes in skin structure …

Photoplethysmography (PPG) is a low-cost, noninvasive optical technique that uses change
in light transmission with changes in blood volume within tissue to provide information for …

The skin is the largest organ and has a key protective role. Similar to any other tissue, the
skin is influenced not only by intrinsic/chronological aging, but also by extrinsic aging …

Skin aging is one of the most evident signs of human aging. Modification of the skin during
the life span is characterized by fine lines and wrinkling, loss of elasticity and volume, laxity …

Skin aging has been defined to encompass both intrinsic and extrinsic aging, with extrinsic
aging effected by environmental influences and overlaying the effects of chronological …

Though preventable in most cases, pressure ulcers continue to pose a major burden to the
individual and society, affecting≤ 3 million adults annually in the United States alone …

To facilitate the process of aging healthily and prevent age-related health problems, efforts
to properly understand aging mechanisms and develop effective and affordable anti-aging …

Hair follicles are essential appendages of the mammalian skin, as hair performs vital
functions of protection, thermoregulation and sensation. Hair follicles harbour exceptional …

Collagen, the most abundant extracellular matrix protein in animal kingdom belongs to a
family of fibrous proteins, which transfer load in tissues and which provide a highly …

Oxidative stress in skin plays a major role in the aging process. This is true for intrinsic aging
and even more for extrinsic aging. Although the results are quite different in dermis and …