题目内容：

    Cold showers are common practice in many countries and have been around for much longer before we were spoiled with in-home water heaters. Many health benefits are associated with taking cold showers, the most popular one being improved circulation (血液循环). Cold water hitting the body causes blood to move closer to the inner organs to keep them warm.1.

Also, those who take a cold shower in the morning are most likely to be more energetic than people who take a hot shower. 2.  This, in turn, increases your oxygen intake and heart rate, leading to improved awareness and a more energetic state.

Besides, as you take a cold shower, your body struggles to stay warm by increasing its metabolic (新陈代谢) rate.3. These cells are responsible for protecting your body and increasing your immune system, making you less likely to be affected by disease.

Additionally, as the cold water shocks the nervous system, the nerves send a signal to the brain and activate the part of the brain responsible for releasing hormones that reduce depression.

4. Having a shower with cold water will close pores (毛孔) in your skin and also make your hair appear smooth, shiny and healthy.

5. Turn that tap to cold every now and then, boost your health, and save some pennies on the heating bill in the process.

A.So, what are you waiting for?

B.Do you believe in these benefits of cold showers?

C.That act increases the overall blood circulation in your body.

D.Lots of white blood cells will soon disappear from your body after that.

E.This results in the body producing more white blood cells as it thinks it’s under attack.

F.A less obvious benefit of cold showers may be discovered when you look in the mirror.

G.The sudden touch of cold water will surprise the body, leaving you taking a deep breath.