At low levels, exercise-induced ROS play a critical role in skeletal muscle adaptation [95] by up-regulating various cytokines and protein kinases such as tumor necrosis factor alpha (TNF-) [96] and mitogen-activated protein kinases (MAPK) [97] that work to signal increases in mitochondrial density and number, endogenous antioxidants, and assist in muscle protein synthesis [98, 99]
10.1016/j.kint.2017.05.034 Kidney Int
However, if symptoms become severe or dont get better despite self-care, you should see a doctor especially in cases such as: Severe dryness with deep cracks, chronic peeling, or bleeding Pain when talking or eating, affecting daily life Darkened, hyperpigmented lips from chronic dryness that dont improve with lip balm Suspected underlying conditions such as eczema, diabetes, or a reaction to medications History of radiation therapy to the head and neck, causing persistent dryness Signs of infection: redness, burning, swelling, blisters, or pus Oral health issues such as unusually strong bad breath, frequent tooth decay, or recurrent gum inflammation If left untreated, cracked lips can progress to cheilitis, which may occur when bacteria or fungi enter through open fissures
100 IU of vaginal vitamin E was found to be as effective as vaginal estrogen for supporting vaginal health during menopause