• Too much red meat 'can make you blind'

• Drinking heavily every day increases liver disease risk

• Lab-on-a-Chip may help study how cancer cells detach from neighbouring tissue to spread disease

• Tobacco plants may harbour diabetes cure

• Few friends, loneliness leads to poor mental, physical health for the elderly

• Actress Richardson dead, didn't get early medical help (Second Lead)

• Computer learning-electrical stimulation combo may give paralysed people better muscle control

• Why autistic people fail to recognise faces

• Actress Richardson was not allowed early medical help: Report (Lead)