![David Sinclair on Twitter: "Quinine, a chemical in gin and tonics, seems to activate SIRT1, a longevity enzyme. Levels of the bitter substance in tonic water are not the same as 100 David Sinclair on Twitter: "Quinine, a chemical in gin and tonics, seems to activate SIRT1, a longevity enzyme. Levels of the bitter substance in tonic water are not the same as 100](https://pbs.twimg.com/media/EBOtr-lU0AAPNAh.jpg)
David Sinclair on Twitter: "Quinine, a chemical in gin and tonics, seems to activate SIRT1, a longevity enzyme. Levels of the bitter substance in tonic water are not the same as 100
![Gin and tonic kept the British Empire healthy: The drink's quinine powder was vital for stopping the spread of malaria. Gin and tonic kept the British Empire healthy: The drink's quinine powder was vital for stopping the spread of malaria.](https://compote.slate.com/images/ede5a89b-ca99-43c3-b559-7a41c6c51fe1.jpg)
Gin and tonic kept the British Empire healthy: The drink's quinine powder was vital for stopping the spread of malaria.
![L'eau tonique d'un bleu éclatant, la quinine, utilisée dans le gin et tonic emmits comme la lumière visible lorsqu'il est activé par une lumière ultraviolette UV 365 nm Photo Stock - Alamy L'eau tonique d'un bleu éclatant, la quinine, utilisée dans le gin et tonic emmits comme la lumière visible lorsqu'il est activé par une lumière ultraviolette UV 365 nm Photo Stock - Alamy](https://c8.alamy.com/compfr/ptk880/l-eau-tonique-d-un-bleu-eclatant-la-quinine-utilisee-dans-le-gin-et-tonic-emmits-comme-la-lumiere-visible-lorsqu-il-est-active-par-une-lumiere-ultraviolette-uv-365-nm-ptk880.jpg)
L'eau tonique d'un bleu éclatant, la quinine, utilisée dans le gin et tonic emmits comme la lumière visible lorsqu'il est activé par une lumière ultraviolette UV 365 nm Photo Stock - Alamy
![Did you know that malaria spawned the gin and tonic? | Office for Science and Society - McGill University Did you know that malaria spawned the gin and tonic? | Office for Science and Society - McGill University](https://www.mcgill.ca/oss/files/oss/styles/hd/public/gin2.png?itok=IQApqj__×tamp=1537974252)