When it comes to dieting, there are a lot of myths and old wives’ tales that get in the way of making good decisions. What’s worse is that some people will even tell you they’ve got the best solution for everyone, no matter what your body type or activity level. This article will explain how you can use science and math to determine just how many calories you need on a daily basis so that you can make an informed decision about what kind of diet will work best for you.

What are calories?

• Calories are a measure of energy. They tell you how much energy is in the food that you eat, which helps your body function and grow.
• The amount of calories in an apple is different from the amount of calories in an orange or an avocado–even though they all have approximately the same number of grams (or even ounces) per serving size!

How many calories do women need?

So how many calories do you need?

The answer depends on your age, height, weight and activity level. The average woman needs about 2200-2500 calories per day to maintain her weight. But if you’re over the age of 51 and have a BMI over 25 (which means that you are overweight), then your recommended daily intake will be higher than this.

Calorie requirements can vary considerably depending on how much sleep we get each night – studies show that people who sleep less tend to eat more food throughout the day. So if your aim is to lose weight or maintain it at a healthy level then getting enough rest every night is essential for keeping control over what goes into your mouth!

Factoring in activity level

Factoring in your activity level is important because it can affect … READ MORE ...