The Chinese martial arts class tai chi is gentle martial art, known for its meditative quality and low impact. It also increases circulation, flexibility and balance, and mental alertness. Yucca Valley is offering a tai chi class, led by Susan Jordan, every Wednesday evening at 6 p.m. The class fee is $35 a month; pre-registration is required. Register online at yucca-valley.org, or in person at the Yucca Valley Community Center.