Heat cramps usually affect workers who sweat a lot during strenuous activity. This sweating depletes the body's salt and moisture levels.

The Travel Risk Estimator for Business travelers (TREB) is a new online calculator. It is envisioned as a tool,

If your travel plans include outdoor activities, take these steps to stay safe and healthy during your trip.

Most animals avoid people, but they may attack if they feel threatened, are protecting their young or territory, or if they are injured or ill.

Motor vehicle crashes are the #1 killer of healthy citizens in foreign countries.

Follow these tips to avoid getting sick or spreading illness to others while traveling:

Bugs (including mosquitoes, ticks, and some flies) can spread diseases (including Zika, dengue, and Lyme disease), many of which cannot be prevented or treated with a vaccine or medicine.

Use the same common sense traveling overseas that you would at home, and always stay alert and aware of your surroundings.
Before you leave

Plan for how you will get health care during your trip, should the need arise:

Unclean food and water can cause travelers' diarrhea and other diseases. Reduce your risk by sticking to safe food and water habits.
Eat

Diseases such as HIV infection and hepatitis B, can be spread through body fluids, such as saliva, blood, vomit, and semen.
Protect yourself:

Zika virus is an emerging mosquito-borne virus that was first identified in Uganda in 1947 in rhesus monkeys through a monitoring network of sylvatic yellow fever. It was subsequently identified in humans in 1952 in Uganda and Tanzania.

Our biological clock is usually synchronised with local time so that we feel hungry in the morning and sleepy in the evening.

Jet lag is a common condition that sometimes occurs after long distance flights. It is the result of your body finding it difficult to adjust to a new time zone.

Yellow fever is a viral disease transmitted by mosquitoes in parts of Africa and South America. Vaccination is safe and effective and is a legal requirement for people travelling through infected areas. Avoiding mosquito bites is also recommended to reduce the risk of catching yellow fever or other mosquito-borne diseases.

KEY POINTS

•We don’t know a lot about the effects of caffeine during pregnancy on you and your baby. So it’s best to limit the amount you get each day.

•If you’re pregnant, limit caffeine to 200 milligrams each day. This is about the amount in 1½ 8-ounce cups of coffee or one 12-ounce cup of coffee.

Key Points about Caffeine and Migraines
•Caffeine affects pain.
•Acute treatment of headaches with caffeine is sometimes effective but should be limited to not more than two days per week.
•For people who experience migraine, caffeine taken three or more days per week, for whatever reason, may lead to dependency and increased migraine frequency.

Caffeine is a substance that is found in certain plants. It can also be man-made and added to foods. It is a central nervous system stimulant and a diuretic (substance that helps rid your body of fluids).

How does caffeine affect blood pressure?
Caffeine can cause a short, but dramatic increase in your blood pressure, even if you don't have high blood pressure. It's unclear what causes this spike in blood pressure.

Caffeine is a substance that exists naturally in certain plants. It can also be man-made and added to food products. It stimulates the central nervous system and is a diuretic, which means it increases urination.

Do you drink just one cup of coffee or tea first thing in the morning, hoping the caffeine in it will jump-start your day? Do you follow it up with a caffeinated beverage or two and then drink several more cups of coffee throughout the day?

Caffeine is a major  active compound in coffee and it is a mild brain stimulant. Caffeine is found in some 60 plant including
• Coffee beans
• Tea leaves
• Kola nuts, which are used to flavor soft drink colas