To eliminate laugh lines, try making this expression.

Just smiling a lot does not cause deepening or formation of nasolabial folds. The main factor for nasolabial folds is aging. Due to aging, the cheeks lose elasticity, causing the nasolabial folds to deepen. The retaining ligaments that support the cheek fat become loose, causing the fat to sag and fold into wrinkles. Retaining ligaments serve to support the skin and fat. Taut retaining ligaments hold the skin and fat in place. However, with age, aging and gravity cause the retaining ligaments to loosen, leading to a loss of skin elasticity. In addition, skin damage from ultraviolet rays, dehydration, improper sleeping positions, or habits can also cause nasolabial folds.

Raising the corners of the mouth to create a bright expression can prevent nasolabial folds. Laughter directly prevents aging by promoting the secretion of endorphins, hormones that enhance cell regeneration. It also indirectly prevents aging. Laughter suppresses the secretion of cortisol, known as the stress hormone, thereby reducing the risk of developing mental health disorders that cause aging.

Smiling can also have the effect of relaxing facial muscles through 'facial stretching.' Instead of smiling, simply opening your mouth wide and performing the movements of 'A, E, I, O, U' can be helpful. Alternatively, using your fingers to gently roll your cheeks up and down to stimulate circulation, or filling your mouth with air and holding it for a few seconds to puff out your cheeks as much as possible can also be effective. Moving your cheeks as if rolling the air around inside your mouth enhances the effect. Then, slowly releasing the air helps prevent wrinkles around the cheeks, as well as overall facial sagging and drooping.

Skin damage caused by ultraviolet rays or dehydration also contributes to the deepening of nasolabial folds. Sunscreen should be applied year-round, and regularly using moisturizing or nourishing creams helps replenish moisture and nutrients in the skin. Using wrinkle-improving cosmetics and applying mask packs are also beneficial. To prevent skin dryness, alcohol consumption should be limited, as alcohol dilates the capillaries in the skin, causing moisture to evaporate. If you must drink alcohol, it is recommended to consume snacks with high water content, such as fruits or vegetables. Drinking plenty of water before bed and immediately after waking helps prevent the skin from drying out.

Sleeping in a prone or side-lying position presses the cheeks and stimulates the wrinkles that have already formed around the mouth, worsening nasolabial folds. It is best to sleep on your back with your gaze directed at the ceiling whenever possible. If you often frown or habitually clench your jaw, these actions also stimulate the area around the mouth and can promote the development of nasolabial folds, so avoid them.