Choose the best answer (根据以下内容，选择最恰当的答案)
Research suggests that at least 64% of people now spend up to four hours daily of spare time in front of a screen. Just as TV watching has been linked to higher chances of being fat and getting diseases, this extra sedentary time is bad news for our health.
⒈Choose outdoor activities over technology
When you're at home, make it a rule that you can't be online if the sun is shining. Instead, you have to go for a walk, ride a bike, swim or get some other kind of healthy, physical activity for at least an hour before you can pull out your phone or tablet, or take a seat at the computer. This rule should be fit for everyone in your family.
⒉Limit social media use
Social networks have changed computer and mobile use for people of all ages. Whether it's Facebook, Twitter, Instagram or Snapchat. Limit the amount of time you spend on social media. Avoid aimless browsing(浏览) and give your time online a purpose research holidays or catch up on the news of the day. Then log off.
⒊Save time for reading
Challenge yourself to read at least 30 pages of a great book before you check your computer or mobile phone. Pick the right reading material and you'll soon find you've discovered an enjoyable pastime.
⒋Create projects for yourself
It's amazing how much you can achieve when you're not glued to (长时间盯着) a screen. Do a list of one-hour evening projects. Some suggestions are organizing kitchen cupboards, cleaning your bedroom. Then try to do one each evening.
