Riding Cycling Helmets

Beginner teen riding a bicycle??
I just learnt how to ride a bicycle and I love it!! I'm 14 , anyways
My question is I want to start riding regularly to get into shape. But, I live in London (the North part, quite in the suburbs a bit, but not like as quiet as american ones) but its not dangerous, its safe, never heard of any crimes in my park (i read the paper regularly)
And there's a park near my house where I can ride, and I want to ride all of it, but there's this part where I can ride but its pretty quiet and lonely. Occasionally you see people walking there and its just by the park gate, outside there's houses and a road. Do you think it's safe to ride there in the early afternoon? I don't want to be in any danger!
Also, how long should I ride a bike regularly (weekend) to lose weight?
And cos I'm a beginner rider, where is it reccomended I ride to improve my cycling?
And do any of you wear a helmet?
thanks
I think you should ride in the morning. Usually there's less crimes in the morning, and it gives you a strong boost to your day. I am also fourteen & I learned how to ride like a month ago! It's so much fun! During the weekend you should ride maybe 2-3 hours if you want to lose weight. To improve your cycling, just ride on the sidewalks. If the sidewalks are too crowded, go to the nearest park. I don't own a helmet, or wear one when I'm riding a bike.
I started out riding a bike last month on a chopper! Awesome, right!?
I got it for five dollars at my friend's garage sale. We got a new bike, though. It's a beach cruiser. ♥
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