Expand Your Chest with THE PSYCHO-EXPANDER (Jun, 1924)

Double Your Breathing Capacity

NEW Lung Developer Makes “Deep Breathing” EASY!

Increase Your CHEST EXPANSION One Inch in Five Days

Develops Neck, Chest, and Shoulders to Striking Beauty

Automatic Resistance Gives GREAT LUNG POWER— Perfect “Breath Control”


This wonderful new invention will enable any man or woman to thoroughly master correct breathing; increase the chest expansion 2 to 5 inches; enlarge the chest to its full beauty; fill out the hollows of neck, shoulders, arms, develop a beautiful classic figure, recharge the system with renewed strength —power—vitality. Nothing like it ever invented before— registers automatically your correct chest expansion and cubic inches breathing capacity.

The principle of the PSYCHO-EXPANDER is that which gives to Great Singers and Grand Opera Stars such perfect health and charming physical development.

Wonderful Invention for Singers, Speakers, Teachers, YOU!

PERFECT BREATH CONTROL and richer tone quality of the voice now assured. Results amazing for everyone who desires to improve in voice and health. It is a positive fact that many who have practiced so-called “deep breathing” for years, have been able to increase their chest expansion one inch in less than one week with this invention—and take into the lungs without conscious effort a greater quantity of oxygen with each normal breath. You know what this means — new life —better health — more energy — beauty — superb physical development — a charming voice and personality — even longer life.

Men–Women–You have N0T been LIVING before. Write for our valuable new book. “FRESH AIR BEAUTY” — filled with startling facta that will surprise you — with letters hard to believe, telling of the merits of the PSYCHO-EXPANDER.


Dept. M. 1900 So. University Ave., Denver, Colo.
Please send quickly your valuable new book—”FRESH AIR BEAUTY” —and full information of your Special 10-Day Offer.

  1. Blurgle says: May 11, 20072:43 am

    Her lungs look pretty well-developed already!

  2. Caya says: May 11, 20077:48 am

    I instantly thought of a Laverne & Shirley episode, where one of them is using some stretchy gadget to increase their bust, and she is chanting “I *must*! I *must*! I must increase my *bust*!” over & over again. Hahahahahahahha–

  3. Stannous says: May 11, 200712:48 pm

    The Psycho-Expander?
    We used to do those in the 60s…

  4. Blurgle says: May 11, 20073:17 pm

    Caya, we used to do that! A year or two before L&S, I think…

  5. galessa says: May 11, 20079:41 pm

    spread the word:

  6. […] had THE PSYCHO-EXPANDER. […]

  7. […] Expand Your Chest With the Psycho-Expander (Modernmechanix, via Boing Boing): Before silicone implants, apparently, there was this. It wasn’t designed for anything as crass as making women’s boobs bigger, of course. The function of the “Psycho-Expander” is to “Double Your Breathing Capacity” and to give you “Great Lung Power.” And those “personal massagers” you used to see advertised? Strictly to relieve aches and pains in your neck and back. Really. […]

  8. The Antenna of Babel says: June 19, 20071:09 pm

    […] we should donate some Psycho-Expanders to the poor, unfortunate flat-chested women of […]

  9. […] blog Modern Mechanix brings us an old-timey advertisement from a 1924 edition of Popular Mechanics hawking an impressive […]

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