It's all got to do with the fatty bits in our brains
A subscription gives you full digital access to all Sunday Times content.
Please visit SundayTimes.co.za in your desktop to view our latest subscription options.
Already subscribed? Simply sign in below.
Questions or problems? Email helpdesk@timeslive.co.za or call 0860 52 52 00.
This article is reserved for Sunday Times subscribers.
A subscription gives you full digital access to all Sunday Times content.
Please visit SundayTimes.co.za in your desktop to view our latest subscription options.
Already subscribed? Simply sign in below.
Sign InQuestions or problems? Email helpdesk@timeslive.co.za or call 0860 52 52 00.