Everything in the Universe is about Energy
Some of the energies may be so subtle, but there are undeniable evidence they exist. The earth's magnetic field is the best example.

To attain and maintain vibrant health, we must protect the vital bio-energy flow/circulation and strength throughout our body. Any disruption or imbalance to the bio-energy's strength or pathways can lead to disharmony, ill health and diseases.Energy medicine means to achieve curative effects by regulating internal bio-energy.

Electromagnetic frequency (EMF) from electrical wiring and gadgets (mobile phone, computer television, microwave oven), radio frequency,wireless, transmission towers, etc can weaken and disrupt the body's bio-energy field.

“The World Health Organization (WHO) takes seriously the concerns raised by reports about possible health effects from exposure to electromagnetic fields (EMF). Cancer, changes in behaviour, memory loss, Parkinson and Alzheimer's diseases, and many other diseases have been suggested as resulting from exposure to EMF. Everyone in the world is not exposed to a complex mix of EMF frequencies in the range 0-300 GHz. EMF has become one of the most pervasive environmental and exposure levels as many frequencies are increasing significantly as the technological revolution continues unabated and new applications using different parts of the spectrum are found.”

Apart from that, stress, pollution, sedentary lifestyles, poor water quality and
poor diet would also interfere with the body's Bio-Energy.