At Gerald Chinchar's home in San Diego, Calif., Nurse Sheri Juan (right) checks his arm for edema that might be a sign that his congestive heart failure is getting worse.
Heidi de Marco/Kaiser Health News
The elaborate Alnwick Garden in northeast England includes a "Poison Garden" that showcases plants with killer properties. Visitors are invited to look but not touch or even smell.
Joanne Silberner for NPR