I have few questions.............
1) i absolutely hate the treadmil so is it ok if i burn majority of the calories if not all at the motion bike?!?...........................
Yes, but then again, the treadmill helps you build more stamina. Nothing beats the treads ;)
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3) I get really sweaty and itchy at gym cuz at times it gets crowded and i think the warmth gets to me lol.....so is it wise to put the fan on while excercising?..
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Its not air conditioned? If it is, don't put a fan on, the sweat evaporating from your body/shirt will cause your skin to cool down, drawing out heat from body. Furthermore, having less humidity around you (with a fan) would mean you sweat more (though you wont notice it) and become dehydrated. Drink lots of water if you want to do that.