Age, gender, heredity, and race.
Answer:
a) Teens who use the Internet and phone after bedtime have a variety of sleep problems.
Explanation:
The STRICT (sleep time related information and communication technology) study performed in American adolescents showed that a high number of adolescents use their cell phone after bed time what results in insomnia, daytime sleepiness, later bedtimes and shorter sleep duration which are all sleep problems associated with the use of the cellphone and communication technology during sleep hours.
62% of the teens used their phone after bedtime, 56.7% texted/tweeted/messaged in bed, and 20.8% awoke to texts interrupting their sleep and the quality of it.
Chronic bronchitis and emphysema
<span><span>A. </span>It
allows you to concentrate on one peaceful sound
</span> Mantra is a Sanskrit word which
literally translates to “instrument of the mind.” From scattered thought and
outward focus, mantras lead the mind to stillness and inner focus. Concentrating
on one thought or on a phrase that doesn’t evoke strong emotions is a great
start to achieve inner peace. Repeating the mantra will then prevent
distracting thoughts and ideas from popping up. The repetition will gradually
slip the mind into a state of thoughtlessness which is better than forcing the
mind suddenly to do so.