Is BabyPlus Safe?

The sound level to the baby is strictly controlled for both pitch and volume. Dr. Logan spent many years studying the normal environment of the developing baby, and BabyPlus is carefully designed to present sounds to the prenatal infant at a very safe but audible level. More than 100,000 families worldwide have attested to its safety and effectiveness. Overstimulation does not occur for the same reason the continous maternal heartbeat does not disturb the baby.

"BabyPlus is a brilliant invention. I have used it myself, will definitely use it again, and have only positive things to say about it in my book."

Dr. Sarah Brewer, MD, Super Baby: Boost your baby's potential from conception to year 1, Harper Collins Publishers, 1998.



This section presents information pertaining to the safety of BabyPlus. Much of this information is scientific and is presented to provide reassurance about the safety of BabyPlus. In brief, there are no known risks to using the BabyPlus system.



The primary safety studies were conducted by Brent Logan, Ph.D., and Rene Van de Carr, M.D., through the Prenatal Institute, Seattle, WA; these initial evaluations occurred during 1985-87, with several replications in subsequent years as new BabyPlus technology was developed. Procedure descriptions and outcomes were published in "Infant Outcomes of a Prenatal Stimulation Pilot Study," Pre and Perinatal Psychology Journal, 1991. Independent examination of these matters was made by Mikhail Lazarev, M.D., Children's Rehabilitation Center, Moscow, and a physician team at Madras Medical University, Madras, India, under D. Raja, M.D.



By digitally sampling hydrophone recordings of normal uterine sounds, specifically that of maternal blood pulsing past the placenta, an electronic baseline was established from which variants in tempo and tone could be generated; these incremental changes were then compared on a real time analyzer for fidelity to standard sonic parameters of the womb. Controls assured that all ex utero sound--whether from audiocassette player maximum volume setting or microchip source--after attenuating 30-35 dB from abdominal tissue and fluid, would reach any fetus below the 95 dB cresting level of its in utero maternal bloodpulse; this audio ceiling is maintained by both original sound reproduction and transducer constraints, falling below that of television, radio, and CD player dB levels which all contemporary unborn children experience. No other prenatal learning methods are similarly controlled, therefore even random classical music does not meet this standard.

Decibel (dB) Ratings and Hazardous Time Exposures of Common Noises
Typical Decibel	Example of Sounds
0	Lowest sound audible to the human ear
10	Normal breathing
20	Whispering at 5 feet
30	Quiet library, soft whisper
40	Living room, quiet office, bedroom away from traffic
50	Light traffic at a distance, refrigerator, gentle breeze
45-60	BabyPlus when it reaches the prenatal child through the maternal abdomen
60	Air conditioner at 20 feet, conversation, sewing machine
70	Busy traffic, office tabulator, noisy restaurant. At this decibel level, noise may begin to affect your hearing if you're exposed to it constantly
The Hazardous Zone
80	Subway, heavy city traffic, alarm clock at two feet, motorboats 85 to 115 dBA, factory noise. These noises are dangerous if you are exposed to them for more than eight hours.
90	Truck traffic, motorcycles 95 to 120 dBA, snowmobiles 99 dBA, noisy home appliances, shop tools, lawn mower. As loudness increases, the “safe” time exposure decreases; damage can occur in less than eight hours.
95	The womb's continuous maternal bloodpulse sound level
100	Chain saw, stereo headphones 105 to 120 dBA, pneumatic drill. Even two hours of exposure can be dangerous at 100 dBA, and with each 5 dBA increase, the “safe time” is cut in half.
110	Video arcades can be this high.
120	Rock band concert in front of speakers, health clubs, aerobic studios, sandblasting, movie theaters measured up to 118 dBA, sporting events up to 127 dBA, thunderclap. The danger is immediate: at 120 dBA exposure can injure your ears.
130	Children's toys that emit sounds many at 135 to 150 dBA, percussion section at symphony, stock car races, jackhammer, power drill
140	Gunshot 150 to 167 dBA, air plane taking off, “Boom Cars” 140 dBA and beyond, bicycle horn. Any length of exposure time is dangerous; noise at 140 dB may cause actual pain in the ear.
150	Jet engine taking off, firecrackers range from 125 to 155 dBA at an average distance of 10 feet, cap gun, balloon pop
160	fireworks (at 3 feet), rifle shot, handgun
170	Shotgun
180	Rocket launching pad. Without ear protection, noise at this level causes irreversible damage: hearing loss is inevitable.
Information provided by the American Academy of Otolaryngology-Head and Neck Surgery Inc., Washington, D.C.1983 and League for the Hard of Hearing 1996-2003.

The electromagnetic field produced by the four BabyPlus AA batteries has no adverse impact upon the developing baby.



Tachycardia resulting from the BabyPlus sonic rhythmicity has never been observed.



Fetal sleep states remain undisturbed by BabyPlus stimulation, just as a mother's blood maintaining an incessant 95 dB in utero presence does not detract from prenatal sleep cycles.



Over 100,000 children prenataly enriched by BabyPlus-the oldest now age 20-have been born worldwide to parents of diverse socioeconomic backgrounds; not a single health or behavioral factor has been reported as negative. Only superlative outcomes are observed by families and professionals, whether physicians, psychologists, or educators.