JOHANNESBURG - The five best read stories on Alec Hogg's Biznews.com, Thursday, April 24 2014:
1. Brain fog making you forget? 7 top brain foods help you remember
2. SA companies making switch from London to Mauritius for financial services
3. Oscar Pistorius witness digs his own grave - expertly. A classic.
4. Undersea mining robot ready to go, awaits UN judgement
5. Windfalls make us self-interested, politically conservative. Lottery winner research.