This study will ascertain the feasibility and effect of Eischens yoga interventions on radiation related fatigue, sexual dysfunction and urinary incontinence in stage I /II prostate cancer patients undergoing radiotherapy with photons and/or protons without prostatectomy. Subjects must be smoke free and have not taken regular yoga classes 6 months prior to enrollment. Subjects will participate in twice weekly yoga sessions for 8 weeks and complete 4 quality of life forms 5 times during study.

The feasibility study refers to the ability to recruit patients willing to participate in the Eischens yoga interventional arm. Those who are recruited during the feasibility study are seemlessly move to the Phase II study, and for this reason the feasibility study and Eischens yoga interventional arms are reported simply as the Eischens yoga interventional arm.

Inclusion Criteria:

Patients

• Prostate cancer patients undergoing active radiation therapy (external beam radiation with photons and/ or protons). Prior or concurrent androgen deprivation therapy is permitted.
• Patients of age >18 years, and all races will be included in the study.
• Patients must have an ECOG Performance Score ≤ 1
• All patients must sign an informed consent form

Caregivers

• Subject is age >18 years
• Subject is English-speaking
• Subject must sign an informed consent form

Exclusion Criteria

Patients

• Patients with medical restrictions that may interfere with or prevent them from taking part in the yoga interventions per their physician orders as evaluated by ECOG Performance Status score.
• Active, regular cigarette smokers, such that smoking may interfere with relaxation and breathing modalities of the yoga interventions. (Smokers that have been smoke-free for 6 months may be included)
• Patients who currently practice or have recently practiced yoga (taken a yoga class on a regular basis in the last 6 months).
• Patients who are undergoing chemotherapy for any reason
• Patients with evidence of metastatic disease

Caregivers

• Subjects that are unwilling or unable to provide informed consent
• Subjects with medical restrictions that may interfere with or prevent them from taking part in the yoga interventions
• Active, regular cigarette smokers, such that smoking may interfere with relaxation and breathing modalities of the yoga interventions. (Smokers that have been smoke-free for 6 months may be included)
• Patients who currently practice or have recently practiced yoga (taken a yoga class on a regular basis in the last 6 months).

Adults with stage I or II prostate cancer undergoing radiation therapy. Enrolled subjects will not have smoked nor taken any regular yoga classes in the 6 months preceding their participation in the study.

Additionally they will have not undergone a surgical prostatectomy

Feasibility Phase and Phase II: Radiotherapy and Eischens Yoga have been combined because the feasibility phase's purpose was to identify and recruit patients willing to participate in the Phase II: Radiotherapy and Eischens Yoga. Those in the feasibility are seamlessly enrolled in the Phase II: Radiotherapy and Eischens Yoga

8 Weeks

Feasibility Phase and Phase II: Yoga Group have been combined because the feasibility phase's purpose was to identify and recruit patients willing to participate in the Phase II: Yoga Group. Those in the feasibility are seamlessly enrolled in the Phase II: Yoga Group.