Most people experience short term insomnia at some time. Insomnia includes having trouble falling asleep, having trouble getting back to sleep, and waking up too early. Insomnia is more common in females, people with a history of depression, and in people older than 60. Temporary insomnia can be caused by:

Hearing a noise

A stressful event like the loss of a job or a death in the family or even catastrophic world events

Certain medications could keep you awake, particularly those that treat colds and allergies, heart disease, high blood pressure, and pain

Bad habits that sabotage our sleep including drinking alcohol and eating too close to bedtime

Short-term insomnia lasts only a few days and is usually not a cause for concern. For example, with jet lag or even seasonal time changes, your internal body clock will readjust itself within several days. Insomnia is considered chronic when it lasts most nights for a few weeks or more. This longer-term condition deserves professional attention. If you are unsure whether you have chronic insomnia, experts suggest looking at it like you would a headache. If it goes on day after day, and nothing you do seems to help, you should see a health care professional, particularly if you cannot find a cause.

Sometimes insomnia is caused by an underlying illness that needs treatment, such as:

Thyroid disorders

Anxiety

Depression

Arthritis

Asthma

Restless leg syndrome

Feeling tired every now and then during the day is normal. But it is not normal for sleepiness to interfere with your routine activities. For example, you shouldn't be dozing off while reading the newspaper, during business meetings, or while sitting at a red light. Slowed thinking, trouble paying attention, heavy eyelids, and feeling irritable are other warning signs.

If you're feeling sleepy frequently during the day, you might simply need to make more time to sleep. Experts say that most adults need at least eight hours of sleep every night to be well-rested, but this varies from person to person. The bottom line is that you should sleep for the number of hours it takes for you to feel rested, refreshed, and fully alert the next day. If you've had a good sleep, you shouldn't feel drowsy during the day. Naps can be good, but the American

Academy of Sleep Medicine recommends napping before 3 p.m. and for no longer than an hour so that it doesn't interfere with falling asleep at night.

If you are sleeping an adequate amount and you still feel drowsy going about your day to day routine, or if adjusting your sleeping habits hasn't helped, then you should talk with your health care provider. Overwhelming daytime sleepiness could be due to a number of sleep disorders. For example, people with narcolepsy experience excessive sleepiness even after a full night's sleep.

Snoring is noisy breathing during sleep that occurs when relaxed structures in the throat vibrate and make noise. Most snoring is harmless, though it can be a nuisance that interferes with the sleep of others. Some snoring can be stopped with lifestyle changes such as:

Losing weight

Cutting down on smoking and alcohol

Changing sleeping positions. This generally means keeping snorers off their backs and on their sides as a way to keep the airway more open during sleep.

There are over the counter nasal strips that are placed over the nose to widen the space in the nose and make breathing easier. Read labels carefully because these strips are only intended to treat snoring. The labels point out certain symptoms that require a doctor's care.

The trick is figuring out the cause of snoring. It could be related to allergies or structural abnormalities such as nasal polyps or enlarged adenoids, which are lymphoid tissue behind the nose. If your snoring is loud and frequent and you also have excessive daytime sleepiness, you could have sleep apnea. People with sleep apnea tend to also be overweight, and it's more common among men than women.

When a person with sleep apnea tries to breathe in air, it creates suction that collapses the windpipe and blocks the flow of air. Blood oxygen levels fall and the brain awakens the person, who then snorts or gasps for air and then resumes snoring. This cycle is typically repeated many times during the night. It results in frequent awakenings that prevent people from reaching the deepest stages of sleep, which leaves them sleepy during the day.