But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.
Getty Images/Fuse. Head down: Jet lag symptoms include feeling sleepy during the day in your new time zone. Jet lag is what we call it when your body is reacting to these changes in your environment, which is basically your body taking time to adjust to its new place and time. Symptoms include feeling sleepy during the day in your new time zone, but also having a troubled sleep at night.
Fortunately, while you may not be able to eliminate jet lag altogether if youâre traveling across multiple time zones, you can lessen its effects with some simple strategies. First, it helps to understand what jet lag is and what causes it. Then, WebMD offers 11 ways to cope with jet lag and still enjoy your travel. Jet lag can occur any time you travel quickly across two or more time zones. The more time zones you cross, the more likely you are to be sleepy and sluggish -- and the longer and more intense the symptoms are likely to be. Jet lag is a temporary sleep disorder, but not temporary enough for many travelers.