Work is a matter of degree for Penny, 70

You're never too old to get a degree, as 70-year-old Penny Enarson proved when she received her doctorate at Stellenbosch University yesterday. For her PhD, Enarson developed a treatment management programme for childhood pneumonia in Malawi, which she has been working on for 15 years."For me, it never felt like studying - it was just me, doing my job and helping others," she said.