Maya Schulder, a 16-year-old from Arizona in Israel with her congregational youth group, died of dehydration on a hike June 8th.News reports stated that the group lacked adequate water. 

As is usually the case with such tragedies and near tragedies — e. g., the death of a new IDF recruit on an army tour shortly after induction, an African-American university student who collapsed and died climbing Masada, yeshivos and seminaries being forced to call for emergency evacuation while hiking in oppressive heat — the news came to me in the form of an e-mail from Mark Newman of Great Neck, New York. 

My relationship with Mark and his wife Ellen began last June when Mark sent me an e-mail out of the blue relating how Mishpacha readers are always telling him that we look exactly alike.I attempted to mollify him by pointing out that almost all formerly black-haired men of a certain age look alike, and suggesting that he should not take it to heart. 

That jocular beginning, however, soon took a darker turn.Mark mentioned that the attached photo of him was somewhat out of date and that he had subsequently put on ten pounds “since I’m not very happy right now.” 

“Not very happy” proved to be a considerable understatement.Mark and his wife Ellen’s son and only child, Ariel Yitzchak, died nearly two years ago while on a hike in the Judean Desert, shortly after arriving in Israel for his gap year. 

The Newmans are baalei teshuvah.Ariel Yitzchak was born after years of waiting and prayer, and they knew from the start that he would likely be their only child.Ellen quit a job that she very much enjoyed to be a full-time mom.For Mark, Ariel Yitzchak became not only his son but his best friend.After his passing, Mark could not function or return to his senior position with the IRS for four months. 

At the hakamas matzeivah for Ariel Yitzchak, Mark did not spare the implications of his loss: “Without Ariel, there is no one ever again to call out to us ‘Mom’ or ‘Abba. ’ We will never have any grandchildren.” 

When Mark and Ellen first received a call from Hadassah hospital that all was not well with Ariel, the first doctor they spoke to was a cardiologist.They assumed that Ariel must have had some undetected heart condition. 

Only later did they learn that he died of exertional heat stroke (EHS).By the time he was brought to the hospital by helicopter, his internal temperature was over 109 degrees Fahrenheit.He had literally self-combusted. 

Ellen immediately began reading everything available on exertional heat stroke.And she and Mark quickly realized that what had happened to Ariel was completely preventable — “not a tragedy,” in Mark’s words, “but an atrocity” caused by gross negligence. 

Every new death from exertional heat stroke or dehydration is a searing reminder for the Newman’s of their loss — not that reminders are ever needed.In addition, it is a further spur to what has become their life mission — preventing future deaths like Ariel’s. 

Working together with Professor Yoram Epstein of the Sheba Medical Center near Tel Aviv and Dr.Douglas Casa of the University of Connecticut’s Korey Stringer Institute, the Newmans have created “Ariel’s Checklist” of ten points that every hiker and hike leader needs to know to prevent EHS.(Korey Stringer was an all-pro NFL lineman who collapsed and died during training camp in 2001.) 

Ariel’s Checklist comes in a short form for hikers and a long-form for tour leaders and guides.Both are available at arielschecklist@icloud. com.The Newmans are doing this only as a public service, bereaved parents who only wish to help others. 

Some of the ten items on Ariel’s Checklist seem obvious at first glance — e. g. , ensure sufficient hydration and adequate rest stops, do not hike in the heat of the day — but even then readers might be shocked at how much water and rest are required by inexperienced, frequently out-of-shape, hikers in high temperatures. 

Nor is it enough for the hikers to be told to drink: Hikers themselves may not be aware that they are dehydrated until it is too late.In the majority of cases, EHS strikes without warning.The tour guide must personally see to it that hikers drink.And that means making sure that they have adequate water with them and that it is sufficiently cool to be drinkable.Other items will be less familiar.For instance, lack of adequate sleep prior to a strenuous hike can dramatically affect the body’s ability to regulate heat internally.And which teenagers traveling in a group, sleeping in sleeping bags or uncomfortable cots, and under assault from mosquitoes, ever get remotely adequate sleep?Clothes are also crucial.Hikers require hats and loose-fitting, absorbent clothing that “breathes” and allows sweat to evaporate efficiently.And a 14-day period of acclimatization is necessary before embarking on a long and strenuous hike. 

The culture of the “hike” can be a matter of life and death.Not a few Israeli tour guides, especially those recently in the IDF, view their task as whipping “soft” Americans into shape.And young people, particularly males, are often too confident of their own strength and endurance or too eager to convey a “macho” image to signal their distress.Hikers must be schooled that they should immediately inform the hike leader if they feel unable to continue, and of the dangers of failing to do so.And guides have to know that those pleading that they cannot go on, as Ariel did, must be heeded. 

Finally, it is crucial that the hikers have enough water to cool off a hiker who experiences EHS: If his or her body temperature can be lowered below 104 degrees Fahrenheit (40 degrees Celsius) within half an hour, the chances of recovery are good.And there must be a tent or other means of creating shade for the victim. 

I MET THE NEWMANS for a second time in March — we first met near their Great Neck home last summer — when they were in Israel for a whirlwind series of meetings with senior officials to promote the widespread use of Ariel’s Checklist and to push for legislation (dubbed “Ariel’s Law”) imposing criminal penalties for tour leaders and guides who fail to follow proper procedures resulting in disaster. 

While here they met with Natan Sharansky, chairman of the Jewish Agency, which has responsibility through MASA-Israel for almost every tour in Israel; with the director-general of the Tourism Ministry and other senior officials involved with the licensing and supervision of tour guides; and with Justice Minister Ayelet Shaked and MK Mordechai Yogev to promote Ariel’s Law. 

MASA-Israel has translated Ariel’s Checklist into Hebrew and agreed to incorporate it as part of MASA’s bylaws, making adherence to its guidelines incumbent on all tours operating under MASA’s auspices.And the Tourism Ministry has undertaken to promote its distribution through hotels and its website and to incorporate Ariel’s Checklist into all its training programs for tour guides. 

One of the Newmans’ main goals is to get Ariel’s Checklist into the hands of every yeshivah bochur in Israel.A combination of near total ignorance of basic safety requirements and youthful bravado has made the yeshivah population a particularly high-risk group during bein hazmanim. 

Mark and Ellen Newman are painfully aware that they can never again kiss Ariel Yitzchak or tell him how much they love him until techiyas hameisim, an awareness that informs and intensifies every tefillah.But until then, they are doing everything possible to make sure that no other parents suffer what they have.


Safety Guidelines for Hiking in the Desert 

Hiking in the desert requires that certain safety measures be followed to avoid heat exhaustion and heat stroke.The following 10 steps can prevent heat-related injury:

Acclimate to the Heat

Avoid participation in extensive physical exercises outside in the heat for the first two weeks.Gradually increase your exposure to the heat with increasing time, duration, and intensity of exercise over the course of 14 days.Do not include any days where the exercise was inside in a cool environment or you did not spend time exercising in the heat.

Ensure the Hike Level is Appropriate

The first two or three hikes should be at a beginner level regardless of your skill or fitness.


Ensure that you are hydrated before, during, and after each hike.In the dry, arid desert, a good rule of thumb is to drink ½ of one quart/liter to one quart/liter of liquid per hour to avoid severe dehydration.The volume of liquid to be drunk depends on how much you sweat.Do not overhydrate.Drinking throughout each hour is recommended rather than drinking a lot at once.

Wear Loose, Moisture-Wicking Clothes

Hikers must wear clothing made of a fabric that is loose, moisture-wicking, and “breathes”, like cotton.


Sleep at least 6-8 hours every night, preferably under comfortable and cool conditions.Two or more nights in a row of inadequate sleep is dangerous, especially if the desert hike will take more than one day.

Determine the Wet Bulb Globe Temperature (WBGT)

Must be 89°F (31. 7°C) in order to begin the hike or 85°F (29. 5°C) if the hike is considered to be difficult.This is different from a simple temperature assessment.There are consumer hand-held devices to measure the WBGT.If other heat-illness related factors are present, consider hiking only when the WBGT is at even lower levels.

Ensure Adequate Rest to Work Cycles

This is one of the primary modes to prevent exertional heat illness.Even if you are in good shape and no other risk factors exist (inadequate sleep, poor physical fitness, etc.) there should be an allotted rest period (in the shade preferable).For example, if the WBGT is 83°F (28. 3°C), allot 20 minutes of rest for every 40 minutes of exercise.The length and frequency of rest breaks should be based on the intensity of activity and the environmental condition (WBGT).Increasing intensity and more adverse environmental conditions should warrant extended and additional break periods.

Avoid Mid-Day Hiking

If there is an urgent need to hike mid-day, at a minimum, greatly extend the length and frequency of the rest periods (in the shade) during the hottest part of the day.

Prepare for Medical Emergencies

There should be at least one person who is trained in medical assistance, particularly in the treatment and care of heat-related illness.Bring a portable tent or bed sheet to create shelter from the sun when there isn’t any other shelter.

Insist on Safety

Not feeling well?Say something.You must feel comfortable notifying the leader if you feel ill or need to rest.Look out for your fellow hiker.Hiking should be fun and safe.Sometimes that means ending early to ensure the safety of all hikers.Do not let yourself be bullied into doing anything you no longer feel is safe. 

Advisor: Professor Yoram Epstein, Heller Institute of Medical Research, Sheba Medical Center, Tel Hashomer, Israel 

For a more detailed version of Ariel’s Checklist, please contact