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It’s a sleep disorder characterized by difficulty in falling and/or staying asleep.

Main causes are consumption of caffeine containing foods or beverages (coffee, cocoa, tea, etc.) near bedtime, physical activities before sleeping, medication, irregular sleep-wake rhythm, stress, respiratory problems, hyperthyroidism, acid reflux, food allergies, food intolerances, neurological motor and degenerative pathologies.


It’s a physiological condition coming from an alteration of the body’s ability in keeping  internal balance, regardless of  external conditions, often due to a change of timezone. A long haul flight can alter the biological rhythm, because the departure time won’t correspond to the proportional  arriving time.

This can lead to symptoms like: alteration of the sleep-awake rhythm and  hunger feeling, intestinal habits and  focus.

The main causes to inspect are:

imbalance of melatonin secretion (hormone produced by a small gland in the brain), imbalance of  cortisol secretion (hormone secreted by the adrenal gland), decreased environment humidification, limited movement during the flight.


  • “Depending on cases, limit or avoid the consumption of histamine releasing foods in the evening ( for example canned and fermented beverages and foods, meat extracts, fish,  salami and cured meats, dairy products, brewer’s yeast, tomatoes, spinach, mushrooms, eggplants, legumes, bananas, ananas, citrus fruit, strawberries, grapes, pears, blackcurrant, kiwis, papaya, avocados, dried fruits and nuts, sugar, sodas, cocoa, caffeine, etc).
  • Take natural remedies like valeriane root, passionflower, etc.