Puppy Curriculum

ENS & ESI

Five tiny exercises and one new scent a day, during the two weeks when a puppy's nervous system is most open to it.

A young puppy being held

Why it matters

Early Neurological Stimulation was developed in the U.S. military's 'Bio Sensor' program. Between days 3 and 16, brief, mild stressors improve heart rate, stress tolerance and disease resistance for life. Each exercise lasts three to five seconds, once a day.

Early Scent Introduction, from Avidog, presents one novel scent per day — grass, leather, lavender, a tennis ball — building a puppy's confidence with the world through its strongest sense.

In practice

The daily protocol

  1. Tactile stimulation

    A cotton swab between the toes for 3–5 seconds.

  2. Head held erect

    Puppy held upright, perpendicular to the ground.

  3. Head pointed down

    Held gently with the head toward the floor.

  4. Supine position

    Resting on their back in our palms.

  5. Thermal stimulation

    Paws on a cool, damp towel for 3–5 seconds.

  6. One new scent

    Presented for a few seconds; we note curiosity, neutrality or avoidance.

What it means for you

At home with your puppy

  • Steadier nerves

    ENS puppies recover faster from startle and stress as adults.

  • Better health

    Studies show stronger heartbeats, adrenal function and immune response.

  • Nose-first confidence

    ESI puppies explore new places by sniffing, not shrinking.