Dark circles under the eyes can result from various factors like genetics, aging, and sleep deprivation, and treatment options range from lifestyle changes to cosmetic procedures depending on the cause and severity.
Stretch marks are lines on the skin that develop when it stretches or shrinks rapidly, often due to rapid weight gain or loss, pregnancy, or growth spurts.
A weight loss plateau is when progress stalls despite efforts, often due to metabolic adaptation, requiring adjustments in diet, exercise, and lifestyle for continued fat loss.