People with yin deficiency and fire exuberance (deficiency of yin essence in the body and hyperactivity of deficiency fire), people with dampness and heat, pregnant women, diabetics and other people should not drink red dates and wolfberries water. Red dates and wolfberries are medicinal and food medicines, mostly used for people with insufficient qi and blood, insufficient liver and kidney (weak liver and kidney). Jujube nourishes the middle and strengthens the qi (treating qi deficiency by nourishing the spleen), nourishes the blood and calms the mind (stabilizing the mind and soothing the emotions by nourishing the blood), which can treat weak spleen qi (weakness of the spleen qi), eating less, wasting weight, easy to get tired and weak, etc. It also treats blood deficiency with a yellowish complexion, dirty restlessness (upset and depressed, wanting to cry in sadness for no reason) of emotional excitement, sadness and desire to cry, and irritability. Lycium barbarum has the effect of nourishing the liver and kidney, benefiting the essence and brightening the eyes (tonifying the essence and promoting the recovery of eyesight), and can treat the deficiency of the liver and kidney (weakness of the liver and kidneys) of the dry eyes, blurred vision, soreness of the waist and knees, and hair loss. The above two medicines in water have the effect of tonifying blood and benefiting qi, improving eyesight and nourishing the liver, but it is not as effective as decocting them into a formula. The symptoms of discomfort should be timely medical treatment, do not blindly use drugs.