It goes without saying that a cancer diagnosis is traumatic and life-changing for the patient: the debilitating rounds of chemotherapy, the worry that metastasis will cripple vital organs, and, behind it all, the spectre of premature death. But a cancer case in the family not only affects the person diagnosed, it adds to “risks of developing psychological and cardiovascular illnesses” among spouses, siblings, children and parents, with parents of children with cancer the most likely to suffer knock-on effects on their own health. Mayo Clinic doctors and University of Utah researchers accessed …