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5.0The first scientifically validated Heart Rate Variability (HRV) apps that do not require any external sensors How do you use them? > HRV4Training is used for an assessment of your resting physiology, first thing in the morning. This way you can determine your body's stress level in response to training and lifestyle stressors > HRV4Biofeedback can be used to try to influence your physiology. By performing deep breathing exercises, you can try to strengthen your parasympathetic nervous system, improve self-regulation and better cope with stress HRV4Training also works with Apple Watch, the Oura ring and all compatible Bluetooth SMART sensors. You can learn more at HRV4Training.com and HRV4Biofeedback.com HRV4Training and HRV4Biofeedback require to register an account with your email address, so that your data can be backed up safely and retrieved in case anything happens (app issue, changing phone, etc.).
