11.After having a child,I found my regular exercise interrupted.I was not only busy,but I also lacked the motivation.Solo gym sessions or some quick (1)
following the DVD while the baby sleeps didn't(2)
me at all.So I decided to sign up for a hiking (3)
in Peru,hoping that it would get me (4)
again. Look over my travel arrangements before I left.I scanned phrases such as "3-hour hike (5)
primitive forests" and "sliding with a rope down waterfalls",and I started to feel a little (6)
. However,as we made our way through the forests and were(7)
with amazing views of awesome waterfalls,this team of strangers (8)
me to go on.Being physically active with a group motivated me to reach the (9)
or the valley below—rather than simply lying down on the forest floor and giving up,(10)
I might have done if I were alone. Experts confirm my experience:Group exercise can really start a new attitude toward fitness. "People get a better (11)
in a group than they do on their own," said Allison Kimmel,a group (12)
instructor.That's because other people (13)
both support and competition. "Humans are (14)
animals and the shared experience of facing a challenge together is compelling(不可抗拒的)," said David Ezell,the CEO of fitness provider Darien Wellness. With the support of a group,I'm slowly getting back into a (15)
20.We all know clean water is important for good health.But now we also know we should watch (1)
we keep our water in.Plastic bottles hardened with a dangerous material (2)
(call) BPA can release a chemical into our water that harms our bodies.Since 2011,many countries (3)
(ban) plastic with BPA from use in food containers and baby bottles.But are other non-BPA plastics safe? Plastic labeled BPA-free might use other chemicals that have (4)
(harm) health effects. (5)
(study) have shown that low levels of those chemicals might have the same effects as BPA.So,what should people do?The (6)
(good) material to drink from is glass, (7)
has no chemicals that can poison water. Another good choice (8)
a drink container is stainless steel.Stainless steel bottles are better than aluminum bottles,which are covered with a thin plastic (9)
(protect) the metal from acids.There are many good food-grade stainless steel water bottles on the market. If you do decide to use a reuseable plastic water bottle,avoid (10)
(keep) it in the sun.Sunlight and hot liquid speed up the release of chemicals into your drinking water.