Excess weight affects fertility in men and women - the good news is weight loss can reverse the negative effects.
Quitting sugar is unlikely to improve your health any more than cutting down on ultra-processed foods, eating more vegetables and cooking food from scratch.
We found that over 12 years, women who had an unhealthy weight and had yo-yoed didn't gain more weight than women who had never yo-yoed.
Most people assume the only reason to eat healthy foods is to stay slim. But being slim doesn't mean you're healthy, and doesn't mean it's OK to eat junk.
It is easy to fall into the trap of giving people you love lots of ultra-processed, high kilojoule, nutrient-poor foods because they like them. But immediate pleasure comes at a cost.
Almost three in four Australian children consume too much sugar, 91.5% of young people don't get enough exercise, and we're among the most obese people in the world.
You can't change your genes but there are some food and lifestyle factors you can target to lower your risk.