I want to lose as much weight as I can before I go back to uni (going on holiday too). I have joined the gym again and I know I can lose weight as I have lost 1.5 stone and kept it off. If I go to the gym everyday after work for a LONG time will that increase my chances? Basically if I burnt off all my calories (will be healthy eating) in the gym, and more, will I have a speedy weight loss? Help please!
You could do more exericse and increase calorie expenditure. The theory goes that you will lose weight. But there are other factors at stake such as how much fat your body is unwilling to drop despite the additional exercise. Everyone has a certain number of fat cells, and some fat cells can increase through age, through increases in stress (exercises is a type of stress) and cortisol, and through insulin insensitivity. You don't want to be exercising any more than 45 minutes each day. Go over that and you risk exercise stress and increases in cortisol. If you have a busy lifestyle and go to a stressul job each day you have to watch how you do it even more. Like others have said: it is about training smarter not harder.
Speedy weight loss is the last thing you want if you want the weight to stay off.
If you maintain a calorie deficit to lose approx. 1/2lbs per week then you could easily lose 15-20lbs by the time you go back to uni.
When you reach the a certain point, the inches will be more important that the pounds lost. So if you ever think you have stopped losing weight or your numbers aren't that good, try taking measurements of your chest, stomach, thighs, etc.
Yes, more exercise will obviously help as you're expending more calories but you also need to consider your diet. I have a friend who's started going to the gym but he still eats junk food and guess what? He's still gaining weight.