Reduced anxiety

Caffeine stimulates the central nervous system, prompting the body to produce and release adrenaline, which can lead to anxiety. Those prone to restlessness or anxiety should consider their caffeine intake. A person should not consume more than 400 milligrams of caffeine (about 4 cups of coffee) per day.

Balanced hormones in women

Caffeine affects estrogen levels in premenopausal women. Estrogen helps protect against osteoporosis, endometriosis, breast cancer, and ovarian cancer. Caffeine consumption after menopause has been linked to increased hot flashes and night sweats.

Better sleep

Avoid caffeine too close to bedtime as it increases alertness. Caffeine blocks the action of adenosine, a neurotransmitter that promotes sleepiness in the brain. Caffeinated beverages can also increase heart rate and blood pressure, affecting the body's natural sleep-wake cycle and disrupting sleep. It's more beneficial to consume caffeinated beverages in the morning.

Slower skin aging

Caffeine slows down the body's collagen production. Collagen is a protein that keeps skin firm and elastic. When caffeine intake decreases, the skin can start to sag and wrinkles may appear. Collagen production also naturally slows down with age. Eliminating caffeine can help prevent premature aging.

Stronger, whiter teeth

Coffee, soda, and tea, all rich in caffeine, can stain teeth due to their acidity and color. The caffeine in these drinks also dries out the mouth. Consuming large amounts of caffeine or having it close to bedtime can cause teeth grinding, leading to jaw pain.

Lower blood pressure

Caffeine can temporarily raise blood pressure by stimulating the sympathetic nervous system, leading to increased heart rate and constricted blood vessels. People with a history of high blood pressure or heart disease should limit their caffeine intake or consult their doctor.

No more caffeine dependence

People who regularly consume caffeine and then stop abruptly can experience several side effects. These include headaches, fatigue, drowsiness, low mood, difficulty concentrating, and irritability. These symptoms can last from two to 9 days.

Improved micronutrient absorption

Caffeine can reduce the absorption of certain vitamins and minerals from food, particularly water-soluble vitamins. It can hinder calcium absorption, leading to bone density loss and an increased risk of osteoporosis. When consumed with meals, caffeine can also inhibit iron absorption. People with nutrient deficiencies might benefit from reducing their caffeine intake.

Le Nguyen (According to WebMD)