No "swollen face" in the morning
Puffiness around the eyes or face immediately after waking up indicates water retention, often due to the kidneys having difficulty maintaining balance. A fresh, unbloated face in the morning is a sign of healthy kidneys.
Stable energy levels all day long
Sleep is important, when the kidneys are healthy, they support the production of erythropoietin - a hormone that stimulates the bone marrow to produce red blood cells.
These cells carry oxygen to every corner of the body. Steady energy levels, especially without mid-day dips or evening lethargy, often reflect healthy kidneys that promote hormone production.
Smooth, moist skin
Dry skin can be a sign of dehydration or a change in the weather. Your skin reflects your body's internal water balance. If your skin feels light and supple throughout the day, especially on your hands and feet, it's often a sign of effective fluid regulation from your kidneys.
Fresh morning breath
The kidneys play a role in removing waste products such as urea from the blood. When the kidneys are not working properly, toxins build up, leading to a fishy or ammonia-like smell in the breath, especially in the morning.
Waking up feeling light, no dry mouth or strange taste, breath is neutral even before brushing teeth, that is a silent signal that the kidneys are good.
Muscles relax, no cramps or spasms
Eye cramps are often blamed on overtraining or poor sleeping posture. Those factors play a role, but the kidneys also regulate electrolyte levels, especially calcium, sodium, magnesium, and potassium. Imbalances in these minerals can cause strange cramps, spasms, or twitches in the eyelids.
Smooth muscles, without cramps, especially during sleep or after exercise, indicate good kidney health.
Source: https://tuoitre.vn/5-dau-hieu-cho-thay-suc-khoe-than-dang-tot-20250728102705744.htm
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