Life is full of things that are beyond your control. You lose your job. A relationship ends. Someone dies. Or indeed, there's a global pandemic. So what about the things that are within your power, that can make you feel better?This special series over four weeks in turn focuses on diet, sleep, pain, and in this episode - exercise. They're the controllables.

Swimmer Maddie Groves' raw comments on social media about a culture of 'misogynistic perverts' in sport have focused attention on the lack of women in leadership and top level coaching positions. Can real cultural shifts only happen when this changes?Plus - hurling an axe at a target is a sure-fire way to release any pent-up rage you might be feeling with the world. As a sport, axe throwing is less than 20 years old.

We're living longer, so should we be surprised when a 50 year old wins a major golf tournament, or an athlete competes across multiple Olympic Games?

Plus, you know how you can be really sore a couple of days after you've done some new exercise. Why does it happen? Is it bad?

Why are post-match press conferences obligatory for tennis players? For players now used to controlling their own narrative through social media, maybe having to front up to journalists and answer their questions is outdated and intrusive.

Plus, is concussion the existential threat that all the football codes face? Do these sports have to do more, not only to protect their players but to safeguard their financial viability, as lawsuits loom?

Sometimes you end up leading a life you never expected to.

Tanya Hosch is the first Indigenous person on the AFL's leadership executive. She's got no background in sport, but she's kicking goals, metaphorically. Mel Hoffman had no idea what rugby league was, until she met and married an NRL player. Thus began a life of getting to know this game, warts and all.

Cricket bats have been made from English cricket willow for more than 200 years. A more sustainable and cheaper high-performance bat made from bamboo could disrupt this. But how does any sport decide whether to permit or reject a radical new equipment design?

It's pre-dawn in the middle of winter. Think of plunging into the sea without a wetsuit, especially in parts of the country where the water gets really cold. Surely this can only lead to extreme discomfort, and possible hypothermia?  So why do plenty of people do it, and extol its physical and mental health benefits?

Women's gymnastics is one of the most popular sports, at the Olympic Games. It's also a sport where bullying and abuse is rife - around the world, including Australia. But if you peel back the layers, it's possible to reveal how, step by step, this became a sport vulnerable to a culture of abuse.

Why do the countless public health campaigns encouraging people to be more active tend to fail?

From Gallipoli to Baghdad and Kabul, cricket has been used in warfare for deception, distraction and diplomacy.