Pamela Hadfield, a user-experience designer for software companies, found out how life-changing medical marijuana can be when she discovered that low-THC products could end the debilitating migraines she'd been suffering her entire adult life. Her next epiphany came when she realized the telehealth app she'd been designing with her husband would be better suited for weed than for regular consultations. The result, HelloMD, has become an invaluable resource for patients looking to try medical weed – from consultations with doctors to precise product recommendations. "We found that people like the convenience," she says. "And obviously, the privacy."