Sleep disorders
Disorders such as insomnia and sleep apnea affect the quality of nightly rest and can harm overall health. The link between coffee and these conditions is significant because of the stimulating effect of caffeine.
Reason for contraindication
Caffeine blocks adenosine receptors, a chemical that induces relaxation and promotes sleep. Coffee consumption, especially in the evening, makes it difficult to fall asleep, reduces the depth of sleep and disrupts the normal sleep cycle. This is a problem for people with pre-existing sleep difficulties.
Recommendations
It is recommended to avoid coffee completely or limit it to the morning hours. Relaxing herbal teas such as valerian, passionflower or linden can be used as substitutes, which promote calmness and good sleep. Establishing routine sleep habits, which include avoiding electronic devices before bedtime, also improves the quality of rest.
Cardiac arrhythmias
Cardiac arrhythmias are disturbances in the normal heart rhythm, manifested as palpitations, tachycardia or irregular rhythm. Caffeine may exacerbate these symptoms due to its effect on the cardiovascular system.
Reason for contraindication
Caffeine increases heart rate and may cause tachycardia attacks in sensitive individuals. Its stimulating effect on the sympathetic nervous system exacerbates arrhythmias, which can lead to discomfort and serious health risks.
Recommendations Patients with arrhythmias should avoid not only coffee, but also other sources of caffeine – such as black tea, energy drinks and some soft drinks. Rooibos
can be used as a substitute — a caffeine-free natural tea with antioxidants that does not affect the heart rhythm. Regular consultations with a cardiologist are important to assess the condition and adjust the recommendations.
