TimeTeller puts circadian rhythm testing at the center of personalized medicine

German startup TimeTeller has launched a saliva test kit that maps a person's circadian rhythm. Spun out of Berlin's Charité hospital, it has partnered with Techniker Krankenkasse and plans to expand the reimbursement program to the insurer's 12 million members.

• The test aims to time cancer treatment to cut side effects and improve outcomes
• Techniker Krankenkasse reimburses the test for a subset of cancer patients
• The 10-person startup spun out of Charité and moved to Medical School Hamburg
• Direct-to-consumer sales began due to demand from longevity clinics