3. HIGHEST SHALLOW DIVE: In January, Danny Higginbottom of Louisiana dived 8.90m into 30cm of water.

4. BREATH HELD VOLUNTARILY: The USA's Robert Foster held his breath for 13mins 42.5secs in 1959.

5. LONGEST TIME TO ENDURE FULL BODY ICE CONTACT: Wim Hoff of the Netherlands stood in an ice cube-filled tube for 1hr 17mins in January.