We end up living in the world virtually through the ideas that we conceive.

Individuality is my biggest fight, not #MeToo. People need to realise their own power, their own freedom, and their own ability to be better. My book Brave is not about #MeToo, but when I went on my first book tour – that was all people were asking me about; and once again, I had my narrative stolen – and I was portrayed as this figure, full of rage, because – perhaps – it's easier for people to not understand my narrative and write me off as angry, and that's a real shame.

Water is the essence of life. On Earth it's used to grow plants and within industrial processes but in space it takes on a whole new form. We can use water as a radiation shield. One cubic metre of water gives the same protection as Earth's atmosphere and magnetosphere. Water is a molecule made of hydrogen and oxygen- and that happens to be rocket fuel.

Many organisms have a pattern of temporal change and senescence that is reproducible and predictable for the species and gender — clearly with a huge genetic component. For example, the longevity of rats is 3.8 years while their 'cousins' the mole-rats live up to 30 years. These timings are probably optimized to fit with the ecology patterns of the species — predation, litter size, environmental variation, food abundance, etc.

The oral care industry and oral products is mainly made out of three or four companies that control 90% of oral care products in the world. All multibillion-dollar, multinational companies. I don't think these companies are stupid. They are run by very intelligent people, but I think the premise has been wrong.

If you really want innovation, you have to say 'no' a lot of times to what's incremental. Saying 'no' reinforces that the small stuff isn't enough.

We have to create systems that make people think twice before they behave badly. People need to credibly believe that there will be consequences to their actions if caught in random stings. If you are in a position where you are uniquely able to wield power- politics, police, corporate leadership- you should be randomly subject to attempts to see if you behave badly when offered the opportunity to do so.

Choosing not to rely on outside funding offers greater freedom overall. While there's significant sacrifice upfront, about 10 years down the line, you begin to truly value the autonomy it provides.

When these things happen in life, our soul calls on us to learn a lesson. Often we need pain to be able to see the light. Most of us begin our spiritual journey after a job loss or a career change.

The microbiome is taking up space, so it is not letting the viruses and the bad bacteria come, adhere to the tissue and then grow. To conclude these are the two mechanisms. It's very simple.

People have been told that asthma is an incurable condition, that they'll need to stay indoors and rely on a bronchodilator every few hours for life. But that's just not true. The way you breathe is deeply connected to asthma symptoms, a message that asthmatics rarely hear from anyone.

I've always been interested in foreign coverage. When I first got into journalism as a student at American University, my goal was to change people's minds about others by helping them understand different perspectives. I didn't necessarily aim to make them feel one way or another, but rather to foster a sense of connection with people they might not know or might even disagree with.