Fluid intake: how coffee and caffeine affect continence. Caffeine is the most widely consumed behaviour-modifying drug in the world. It occurs naturally in about 60 species of plants, most commonly in coffee beans, tea leaves, cocoa seeds and the cola nut (Thomas, 1990; Greener, 1993).
Clinical features of blepharospasm include involuntary eye closing aggravated by bright lights, wind, pollution, smoke, emotional stress, fatigue. This eye closing may interfere with reading, driving, watching television, and other visual activities, and is rarely associated with retro-orbital. pain. Blepharospasm may be associated with other dystonic disorders, such as oromandibular or. cervical dystonia, and usually occurs in the 5th to 7th decades of life.
Eye Twitching, also known as blepharospasm or myokymia, is a sudden, involuntary movement of the eyelid; it is also referred to as an eye muscle spasm. These spasms often occur in stressful situations or when the affected individual has gone too long without sufficient rest.ther common eye twitch causes include: 1  Stress. 2  Irritation of the Cornea or Conjunctiva. 3  Fatigue/Lack of sleep. 4  Prolonged staring at a computer screen or television. 5  Excessive caffeine intake (e.g., coffee, tea, caffeinated sodas). 6  Nervous system disorders.