Your body’s muscles know the truth before your mind can speak it

In the 1960s, chiropractor George Goodheart discovered that the body’s muscles would weaken if pressure were applied while the underlying belief or system was out of balance. This simple form of biofeedback was dubbed muscle testing, or applied kinesiology.

Decades later, Stanford physicist William Tiller and others showed that tiny changes in our energetic field—our thoughts or beliefs—can influence electronic devices. Your body, by contrast, is the most sophisticated biosensor of all, measuring truth or congruence in milliseconds.

Think of your body as a living computer. While your conscious mind fumbles with options, your subconscious mind already knows if a statement is true or false. All you have to do is learn to query it with gentle muscle tests.

Learning the Arm Test is like installing remote-control software on your innermost being. You can ask, “Is this food good for me?” or “Do I have a trapped emotion right now?” The body’s reflexive response—a locked arm for yes, a giving arm for no—tells you exactly what you need to know.

Scientists still debate the precise mechanisms, but therapists, healers and thousands of patients worldwide have quietly confirmed muscle testing’s accuracy. For you, it means bypassing self-doubt and tapping directly into your own truth source.

Imagine you’re talking to your body like a friend who already knows your answer. You set your arm or finger and say “yes” or “no.” Your body either stays firm or gives way. You’ll practice at home with harmless facts—“I live on Earth” versus “I live on Mars”—then move on to bigger questions about health or emotions. Within days, you’ll trust these signals more than your wandering mind.