In the second of a five-part Health Matters wellness series on ageing in Hong Kong, Lo Hoi-ying examines rising social isolation among the elderly, its serious health risks and how activities and community support are helping seniors stay socially engaged.For Lee Chor-kwan, an 89-year-old living alone in Hong Kong, mealtimes are often lonely.But the highlight of his day is lunchtime, when he visits an elderly care home to eat with his 86-year-old wife, whom he met through an arranged marriage...