I personally weigh myself once or twice a week, but I know people that weigh themselves on a daily basis, which in all honesty can't be that accurate. Your weight fluctuates a LOT during the day. Especially if you eat foods like granola and drink a lot of water. And obviously you'll weigh less after a BM (Bowel movement :P)
(I think some people forget that in addition to your actual body weight, the food you take in, and "release" still has weight. <_<)
I weigh myself at random intervals...whenever it takes my fancy. Sometimes it's once a week, other times every couple of days or every day - it's always changing. I tend to just see how I feel/how my clothes fit etc..
Sometimes I need the scale to up a bit to light the fire. Not too much though...
I weigh every morning after peeing before taking my shower - naked. Sometimes daily weighing can be frustrating when the scale creeps up a tiny bit. I used to weigh 2-3 times a week, but I am now involved in a weight loss clinical trial and am required to weigh daily.
I only weigh my self ones a week on Fridays after work I dont have a scale at home so I drive to my sisters and weigh in the only thing I take off are my jeans and shoes. I have seen the weight coming off 1 to 2 lbs a week, except for this Friday I put on 1.5lbs back I got very depressed.
If you can, let it trigger you to get fired up and turn it up a notch instead of triggering you to feel depressed. Use your one step backward as a tool. Up 1.5 lbs isn't really anything in the grand scheme of things.
Usually every other day. If it moves one direction or the other, watch and wait... it might go back to normal, or it might not, and if it doesn't return to where it should be within a few weighings, take action.
I weight myself every time I go to the gym. I weight myself before my workout and then after my workout. I keep track by adding my weight to this site every day. If I take a day off from the gym then I do not weight myself that day.
In my own opinion weighing yourself every day is only a negative if you let it depress you when your weight goes up on a given day. For me it does not get me down when my weight is higher on a given day. Weighing myself almost every day gives me a general idea of how my diet and exercise from the most recent days had a effect on my weight. I don't let one day play a factor, but the longer between weightings the harder for me to understand what and how each thing I did effected my weight.
I probably weigh myself wayyyy too often, but I like knowing what general area of weight I'm in. I weigh myself in the morning right after I get up and go to the bathroom, and then usually once or twice in the evening, and once while I'm at the gym. That said, my scale at home isn't digital so I can only get an estimate, rather than an exact number. If I had a digital scale at home the constant fluctuation would probably drive me nuts, but I find that knowing that I'm "somewhere around 145" or "a little under 150" is comforting.
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