Jet lag can cause daytime fatigue, an unwell feeling, difficulty staying alert and gastrointestinal problems. Jet lag is temporary, but it can significantly degrade your vacation or business travel comfort. Fortunately, there are steps you can take to help prevent or minimize jet lag.
Symptoms of jet lag can vary. You may experience only one symptom or multiple symptoms. Jet lag symptoms may include:
· Disturbed sleep — such as insomnia, early waking or excessive sleepiness
· Daytime fatigue
· Difficulty concentrating or functioning at your usual level
· Stomach problems, constipation or diarrhea
· A general feeling of not being well
· Muscle soreness
· Menstrual symptoms in women
Symptoms worse the farther you travel
Jet lag symptoms usually occur within a day or two of travel if you've traveled across at least two time zones. Symptoms are likely to be worse or last longer the more time zones that you've crossed, especially if you travel in an easterly direction. It's estimated to take about a day to recover for each time zone crossed.
Jet lag symptoms usually occur within a day or two of travel if you've traveled across at least two time zones. Symptoms are likely to be worse or last longer the more time zones that you've crossed, especially if you travel in an easterly direction. It's estimated to take about a day to recover for each time zone crossed.
When to see a doctor
Jet lag is temporary. But if you are a frequent traveler and continually struggle with jet lag, you may benefit from seeing a sleep specialist.
Jet lag is temporary. But if you are a frequent traveler and continually struggle with jet lag, you may benefit from seeing a sleep specialist.
A disruption to your circadian rhythms
Jet lag can occur anytime you cross two or more time zones. Jet lag occurs because crossing multiple time zones puts your internal clock or circadian rhythms, which regulate your sleep-wake cycle, out of sync with the time in your new locale. For instance, you lose six hours on a typical New York to Paris flight. That means that if you leave New York at 4:00 p.m. on Tuesday, you arrive in Paris at 7:00 a.m. Wednesday. According to your internal clock, it's 1:00 in the morning, and you're ready for bed, just as Parisians are waking up. And because it takes a few days for your body to adjust, your sleep-wake cycle, along with most other body functions, such as hunger and bowel habits, remains out of step with the rest of Paris.
Jet lag can occur anytime you cross two or more time zones. Jet lag occurs because crossing multiple time zones puts your internal clock or circadian rhythms, which regulate your sleep-wake cycle, out of sync with the time in your new locale. For instance, you lose six hours on a typical New York to Paris flight. That means that if you leave New York at 4:00 p.m. on Tuesday, you arrive in Paris at 7:00 a.m. Wednesday. According to your internal clock, it's 1:00 in the morning, and you're ready for bed, just as Parisians are waking up. And because it takes a few days for your body to adjust, your sleep-wake cycle, along with most other body functions, such as hunger and bowel habits, remains out of step with the rest of Paris.
The influence of sunlight
A key influence on your internal clock is sunlight. That's because the pineal gland, a part of the brain that influences circadian rhythms, responds to darkness and light. Certain cells in your retina — the tissue at the back of your eye — transmit the signal of light to an area of your hypothalamus, a part of your brain. The signal is then sent to your pineal gland. At night, the pineal gland releases the sleep-promoting hormone melatonin. During the day, melatonin production is very low. So you may be able to ease your adjustment to your new time zone by exposing yourself to daylight in that new time zone.
A key influence on your internal clock is sunlight. That's because the pineal gland, a part of the brain that influences circadian rhythms, responds to darkness and light. Certain cells in your retina — the tissue at the back of your eye — transmit the signal of light to an area of your hypothalamus, a part of your brain. The signal is then sent to your pineal gland. At night, the pineal gland releases the sleep-promoting hormone melatonin. During the day, melatonin production is very low. So you may be able to ease your adjustment to your new time zone by exposing yourself to daylight in that new time zone.
Airline cabin pressure and atmosphere
Some research shows that the changes in cabin pressure associated with air travel may contribute to some symptoms of jet lag, regardless of travel across time zones. A July 2007 study published in the New England Journal of Medicine showed that simulated air travel at cabin pressures equivalent to 7,000 to 8,000 feet of elevation produced symptoms of altitude-related malaise (a feeling of unwellness), muscular discomfort and fatigue. In addition, most airline cabins circulate very dry air, which can be dehydrating. And mild dehydration can contribute to feelings of malaise, headache, and eye and nasal discomfort.
Some research shows that the changes in cabin pressure associated with air travel may contribute to some symptoms of jet lag, regardless of travel across time zones. A July 2007 study published in the New England Journal of Medicine showed that simulated air travel at cabin pressures equivalent to 7,000 to 8,000 feet of elevation produced symptoms of altitude-related malaise (a feeling of unwellness), muscular discomfort and fatigue. In addition, most airline cabins circulate very dry air, which can be dehydrating. And mild dehydration can contribute to feelings of malaise, headache, and eye and nasal discomfort.
A few basic steps may help prevent jet lag or reduce its effects:
· Arrive early. If you have an important meeting or conference — anything that requires you to be in top form — try to arrive a few days early to give your body a chance to adjust.
· Get plenty of rest before your trip. Starting out sleep-deprived makes jet lag worse.
· Gradually adjust your schedule before you leave. If you're traveling east, try going to bed one hour earlier each night for a few days before your departure. Go to bed one hour later for several nights if you're flying west. If possible, eat meals closer to the time you'll be eating them at your destination.
· Regulate bright light exposure. Because light exposure is one of the prime influences on your body's circadian rhythm, regulating light exposure may help you adjust to your new location. If you have traveled west, wear sunglasses and avoid bright light in the morning, and then allow as much sunlight as possible in the late afternoon for the first days in your new location. If you have traveled east, bright sun exposure in the morning hours will be the most beneficial to helping your body adjust to the local time.
· Stay on your new schedule. Set your watch to the new time before you leave. Once you reach your destination, try not to sleep until the local nighttime, no matter how tired you are.
· Stay hydrated. Drink plenty of water before, during and after your flight to counteract the dehydrating effects of dry cabin air. Dehydration can make jet lag symptoms worse. For the same reason, avoid alcohol and caffeine, both of which dehydrate you further.
· Try to sleep on the plane if it's nighttime at your destination. Earplugs, headphones and eye masks can help block out noise and light. If it's daytime where you're going, resist the urge to sleep.
Effective Living Clinic
B-3/19, 0:1, Sector 3, Vashi
Navi Mumbai 400703
Tel: 9987223811 / 9969105310
www.effectivelivingclinic.com
