The document discusses the dangers of keeping phones in the bedroom while sleeping. Three main dangers are outlined: 1) It can hurt sleep quality by waking you up unexpectedly or causing worries about missing updates. 2) It can negatively affect brain function and activity, as shown in a study where women's brain activity decreased after WiFi exposure. 3) Keeping phones in the bedroom can aggravate health problems faster, such as by emphasizing insomnia or making headaches more serious. The document recommends keeping phones in a different room from the bedroom for better health and sleep.

1. Dangers of Leaving Phone
in Bedroom When Sleeping
Tao Tang

2. CONTENTS
 A statics for using phones
 Three dangers of keeping phone in
bedroom
 How to overcome the dangerous

3. INTRODUCTION
 According to the analysis:
 64.52% of people keep their phone next to bed and
easily to touch.
 16.31% of people keep their phone in bedroom, but not
easily to touch.
 16.02% of people keep phones in different room from
bedroom.
Source: http://www.huffingtonpost.com/2013/02/15/phones-sleep-mobile-
_n_2680805.html

4. FIRST DANGER – PHONE IN
BEDROOM
 Hurt sleep quality:
 Waking you up unexpected with messages or
phone.
 Too much worries about missing updates in social
networks.

5. SECOND DANGER – PHONE IN
BEDROOM
 Negatively affect brain’s function and
activities.
 Reduce brain activity in Females:
 “group of 30 healthy volunteers, 15 men and 15 women, were
given a simple memory test. First, the entire group was tested
without any exposure to Wi-Fi radiation — no problem. Then,
they were exposed to 2.4 GHz Wi-Fi from a wireless access
point for about 45 minutes. During that portion of the testing,
brain activity was measured and the women had a noticeable
change in brain activity and energy levels” (Global Healing
Center, 2014).
Source: http://www.globalhealingcenter.com/natural-health/10-shocking-facts-health-
dangers-wifi/

6. THIRD DANGER – PHONE IN
BEDROOM
 Aggravate health problem faster
 Emphasize insomnia
 Headache goes more serious

7. CONCLUSION
 Keeping phones in different room from
bedroom is not hard.
 As truly as people care about their
health.
 Using clock as alarm instead of phones.